vm-cli reworked.

now accepts -kind and -delay flags.

arg parsing moved into separate run_commands function.

README added to vm-cli example

.gitignore

@@ -1,6 +1,9 @@
 # quick tests
 quick
 
+#config
+config.toml
+
 # Binaries for programs and plugins
 *.exe
 *.exe~

CHANGELOG.md

@@ -11,6 +11,42 @@ Before any major/minor/patch bump all unit tests will be run to verify they pass
 
 -   [x]
 
+## [1.7.0] - 2022-09-14
+
+### Added
+
+-   voicemeeter.NewRemote now accepts a delay int argument (milliseconds).
+-   vm.Sync() can now be used to force the dirty parameters to clear.
+
+### Changed
+
+-   higher level methods/functions now accept/return float64
+-   tests updated to reflect changes.
+
+## [1.5.0] - 2022-09-07
+
+### Changed
+
+-   changes to error handling.
+    -   functions that wrap capi calls now return error types.
+    -   higher level functions print error messages
+
+## [1.4.0] - 2022-08-22
+
+### Added
+
+-   midi type, supports midi devices
+-   midi updates added to the pooler
+-   event type, supports toggling event updates through EventAdd() and EventRemove() methods.
+-   Forwarder methods for get/set float/string parameters added to Remote type
+-   Midi, Events sections added to README.
+
+### Changed
+
+-   macrobutton updates moved into its own goroutine
+-   observer example updated to include midi updates
+-   level updates are now disabled by default, should be enabled explicitly
+
 ## [1.2.0] - 2022-07-10
 
 ### Added

README.md

@@ -8,9 +8,9 @@ For an outline of past/future changes refer to: [CHANGELOG](CHANGELOG.md)
 
 ## Tested against
 
--   Basic 1.0.8.2
--   Banana 2.0.6.2
--   Potato 3.0.2.2
+-   Basic 1.0.8.4
+-   Banana 2.0.6.4
+-   Potato 3.0.2.4
 
 ## Requirements
 
@@ -19,20 +19,14 @@ For an outline of past/future changes refer to: [CHANGELOG](CHANGELOG.md)
 
 ## Installation
 
-#### GO.MOD
-
-Add to your `go.mod` file:
-
-`require github.com/onyx-and-iris/voicemeeter-api-go vX.X.X`
-
-where `vX.X.X` is the version you require.
-
 #### GO GET
 
 Install voicemeeter-api-go package from your console to download the latest version.
 
 `go get github.com/onyx-and-iris/voicemeeter-api-go`
 
+or add it to your `go.mod` file.
+
 ## `Use`
 
 #### `main.go`
@@ -42,25 +36,41 @@ package main
 
 import (
 	"fmt"
+	"log"
 
 	"github.com/onyx-and-iris/voicemeeter-api-go"
 )
 
 func main() {
-	kindId := "banana"
-	vmRem := voicemeeter.NewRemote(kindId)
+	vm, err := vmConnect()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
 
-	vmRem.Login()
+	vm.Strip[0].SetLabel("rode podmic")
+	vm.Strip[0].SetMute(true)
+	fmt.Printf("Strip 0 (%s) mute was set to %v\n", vm.Strip[0].GetLabel(), vm.Strip[0].GetMute())
+}
 
-	vmRem.Strip[0].SetLabel("rode podmic")
-	vmRem.Strip[0].SetMute(true)
-	fmt.Printf("Strip 0 (%s) mute was set to %v\n", vmRem.Strip[0].GetLabel(), vmRem.Strip[0].GetMute())
+func vmConnect() (*voicemeeter.Remote, error) {
+	vm, err := voicemeeter.NewRemote("banana", 15)
+	if err != nil {
+		return nil, err
+	}
 
-	vmRem.Logout()
+	err = vm.Login()
+	if err != nil {
+		return nil, err
+	}
+
+	return vm, nil
 }
 ```
 
-## `kindId`
+## `voicemeeter.NewRemote(<kindId>, <delay>)`
+
+### `kindId`
 
 Pass the kind of Voicemeeter as an argument. kindId may be:
 
@@ -68,63 +78,101 @@ Pass the kind of Voicemeeter as an argument. kindId may be:
 -   `banana`
 -   `potato`
 
+### `delay`
+
+Pass a delay in milliseconds to force the getters to wait for dirty parameters to clear.
+
+Useful if not running callbacks.
+
 ## `Remote Type`
 
-#### `vmRem.Strip`
+#### `vm.Strip`
 
 []t_strip slice containing both physicalStrip and virtualStrip types
 
-#### `vmRem.Bus`
+#### `vm.Bus`
 
 []t_bus slice containing both physicalBus and virtualBus types
 
-#### `vmRem.Button`
+#### `vm.Button`
 
 []button slice containing button types, one for each macrobutton
 
-#### `vmRem.Command`
+#### `vm.Command`
 
 pointer to command type, represents action type functions
 
-#### `vmRem.Vban`
+#### `vm.Vban`
 
 pointer to vban type, containing both vbanInStream and vbanOutStream slices
 
-#### `vmRem.Device`
+#### `vm.Device`
 
 pointer to device type, represents physical input/output hardware devices
 
-#### `vmRem.Recorder`
+#### `vm.Recorder`
 
 pointer to recorder type, represents the recorder
 
-#### `vmRem.Type()`
+#### `vm.Midi`
+
+pointer to midi type, represents a connected midi device
+
+#### `vm.Type()`
 
 returns the type of Voicemeeter as a string
 
-#### `vmRem.Version()`
+#### `vm.Version()`
 
 returns the version of Voicemeeter as a string
 
-#### `vmRem.SendText(<script>)`
+#### `vm.GetFloat(<param>)`
+
+gets a float parameter value
+
+#### `vm.SetFloat(<param>, <value>)`
+
+sets a float parameter value eg. vm.SetFloat("strip[0].mute", 1)
+
+#### `vm.GetString(<param>)`
+
+gets a string parameter value
+
+#### `vm.SetString(<param>, <value>)`
+
+sets a string parameter value eg. vm.SetString("strip[0].label", "podmic")
+
+#### `vm.SendText(<script>)`
 
 sets many parameters in script format eg. ("Strip[0].Mute=1;Bus[3].Gain=3.6")
 
-#### `vmRem.Register(o observer)`
+#### `vm.Register(o observer)`
 
 register an object as an observer
 
-#### `vmRem.Deregister(o observer)`
+#### `vm.Deregister(o observer)`
 
 deregister an object as an observer
 
-#### `vmRem.Pdirty()`
+#### `vm.EventAdd(<event>)`
+
+adds an event to the pooler eg. vm.EventAdd("ldirty")
+
+#### `vm.EventRemove(<event>)`
+
+removes an event to the pooler eg. vm.EventRemove("pdirty")
+
+#### `vm.Pdirty()`
 
 returns True iff a GUI parameter has changed
 
-#### `vmRem.Mdirty()`
+#### `vm.Mdirty()`
 
-returns True iff a macrobutton paramter has changed
+returns True iff a macrobutton parameter has changed
+
+#### `vm.Sync()`
+
+Use this to force dirty parameters to clear after a delay in milliseconds.
 
 ## `Available commands`
 
@@ -143,55 +191,60 @@ The following methods are available
 -   `GetLabel() string`
 -   `SetLabel(val string)`
 -   `GetGain() float64`
--   `SetGain(val float32)` from -60.0 to 12.0
+-   `SetGain(val float64)` from -60.0 to 12.0
 -   `GetMc() bool`
 -   `SetMc(val bool)`
 -   `GetComp() float64`
--   `SetComp(val float32)` from 0.0 to 10.0
+-   `SetComp(val float64)` from 0.0 to 10.0
 -   `GetGate() float64`
--   `SetGate(val float32)` from 0.0 to 10.0
+-   `SetGate(val float64)` from 0.0 to 10.0
 -   `GetAudibility() float64`
--   `SetAudibility(val float32)` from 0.0 to 10.0
+-   `SetAudibility(val float64)` from 0.0 to 10.0
 -   `GetA1() bool - GetA5() bool`
 -   `SetA1(val bool) - SetA5(val bool)`
+-   `AppGain(name string, gain float64)`
+-   `AppMute(name string, val bool)`
 
 example:
 
 ```go
-vmRem.Strip[3].SetGain(3.7)
-fmt.Println(vmRem.Strip[0].GetLabel())
-vmRem.Strip[4].SetA1(true)
+vm.Strip[3].SetGain(3.7)
+fmt.Println(vm.Strip[0].GetLabel())
+vm.Strip[4].SetA1(true)
+
+vm.Strip[5].AppGain("Spotify", 0.5)
+vm.Strip[5].AppMute("Spotify", true)
 ```
 
 ##### Gainlayers
 
--   `vmRem.Strip[i].GainLayer()[j]`
+-   `vm.Strip[i].GainLayer()[j]`
 
 The following methods are available
 
 -   `Get() float64`
--   `Set(val float32)`
+-   `Set(val float64)`
 
 example:
 
 ```go
-vmRem.Strip[6].GainLayer()[3].Set(-13.6)
+vm.Strip[6].GainLayer()[3].Set(-13.6)
 ```
 
 ##### Levels
 
--   `vmRem.Strip[i].Levels()`
+-   `vm.Strip[i].Levels()`
 
 The following methods are available
 
--   `PreFader() []float32`
--   `PostFader() []float32`
--   `PostMute() []float32`
+-   `PreFader() []float64`
+-   `PostFader() []float64`
+-   `PostMute() []float64`
 
 example:
 
 ```go
-fmt.Println(vmRem.Strip[5].Levels().PreFader())
+fmt.Println(vm.Strip[5].Levels().PreFader())
 ```
 
 ### Bus
@@ -208,16 +261,16 @@ The following methods are available
 -   `GetLabel() string`
 -   `SetLabel(val string)`
 -   `GetGain() float64`
--   `SetGain(val float32)` from -60.0 to 12.0
+-   `SetGain(val float64)` from -60.0 to 12.0
 
 ```go
-vmRem.Bus[3].SetEq(true)
-fmt.Println(vmRem.Bus[0].GetLabel())
+vm.Bus[3].SetEq(true)
+fmt.Println(vm.Bus[0].GetLabel())
 ```
 
 ##### Modes
 
--   `vmRem.Bus[i].Mode()`
+-   `vm.Bus[i].Mode()`
 
 The following methods are available
 
@@ -249,22 +302,38 @@ The following methods are available
 example:
 
 ```go
-vmRem.Bus[3].Mode().SetAmix(true)
-vmRem.Bus[4].Mode().SetCenterOnly(true)
+vm.Bus[3].Mode().SetAmix(true)
+vm.Bus[4].Mode().SetCenterOnly(true)
 ```
 
 ##### Levels
 
--   `vmRem.Bus[i].Levels()`
+-   `vm.Bus[i].Levels()`
 
 The following methods are available
 
--   `All() []float32`
+-   `All() []float64`
 
 example:
 
 ```go
-fmt.Println(vmRem.Bus[1].Levels().All())
+fmt.Println(vm.Bus[1].Levels().All())
+```
+
+### Strip | Bus
+
+The following methods are available.
+
+-   `FadeTo(target float64, time_ int)`: float, int
+-   `FadeBy(change float64, time_ int)`: float, int
+
+Modify gain to or by the selected amount in db over a time interval in ms.
+
+example:
+
+```go
+vm.Strip[3].FadeBy(-8.3, 500)
+vm.Bus[3].FadeTo(-12.8, 500)
 ```
 
 ### Button
@@ -281,8 +350,8 @@ The following methods are available
 example:
 
 ```go
-vmRem.Button[37].SetState(true)
-fmt.Println(vmRem.Button[64].GetStateOnly())
+vm.Button[37].SetState(true)
+fmt.Println(vm.Button[64].GetStateOnly())
 ```
 
 ### Command
@@ -298,17 +367,17 @@ The following methods are available
 example:
 
 ```go
-vmRem.Command.Restart()
-vmRem.Command.Show()
+vm.Command.Restart()
+vm.Command.Show()
 ```
 
 ### VBAN
 
--   `vmRem.Vban.Enable()` `vmRem.Vban.Disable()` Turn VBAN on or off
+-   `vm.Vban.Enable()` `vm.Vban.Disable()` Turn VBAN on or off
 
 ##### Instream | Outstream
 
--   `vmRem.Vban.InStream` `vmRem.Vban.OutStream`
+-   `vm.Vban.InStream` `vm.Vban.OutStream`
 
 The following methods are available
 
@@ -335,29 +404,29 @@ example:
 
 ```go
 # turn VBAN on
-vmRem.Vban.Enable()
+vm.Vban.Enable()
 
 // turn on vban instream 0
-vmRem.Vban.InStream[0].SetOn(true)
+vm.Vban.InStream[0].SetOn(true)
 
 // set bit property for outstream 3 to 24
-vmRem.Vban.OutStream[3].SetBit(24)
+vm.Vban.OutStream[3].SetBit(24)
 ```
 
 ### Device
 
 The following methods are available
 
--   `Ins`
--   `Outs`
+-   `Ins()`
+-   `Outs()`
 -   `Input(val int)`
 -   `Output(val int)`
 
 example:
 
 ```go
-for i := 0; i < int(vmRem.Device.Ins()); i++ {
-	fmt.Println(vmRem.Device.Input(i))
+for i := 0; i < int(vm.Device.Ins()); i++ {
+	fmt.Println(vm.Device.Input(i))
 }
 ```
 
@@ -376,14 +445,46 @@ The following methods are available
 example:
 
 ```go
-vmRem.Recorder.Play()
-vmRem.Recorder.Stop()
+vm.Recorder.Play()
+vm.Recorder.Stop()
 
 # Enable loop play
-vmRem.Recorder.Loop(true)
+vm.Recorder.Loop(true)
 
 # Disable recorder out channel B2
-vmRem.Recorder.SetB2(false)
+vm.Recorder.SetB2(false)
+```
+
+### Midi
+
+The following methods are available
+
+-   `Channel()` returns the current midi channel
+-   `Current()` returns the most recently pressed midi button
+-   `Get(<button>)` returns the value in cache for the midi button
+
+example:
+
+```go
+var current = vm.Midi.Current()
+var val = vm.Midi.Get(current)
+```
+
+### Events
+
+By default level updates are disabled. Any event may be enabled or disabled. The following events exist:
+
+-   `pdirty` parameter updates
+-   `mdirty` macrobutton updates
+-   `midi` midi updates
+-   `ldirty` level updates
+
+example:
+
+```go
+vm.EventAdd("ldirty")
+
+vm.EventRemove("pdirty")
 ```
 
 ### Run tests

base.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"math"
-	"os"
 	"strings"
 	"syscall"
 	"time"
@@ -37,41 +36,43 @@ var (
 	vmMdirty         = mod.NewProc("VBVMR_MacroButton_IsDirty")
 	vmGetMacroStatus = mod.NewProc("VBVMR_MacroButton_GetStatus")
 	vmSetMacroStatus = mod.NewProc("VBVMR_MacroButton_SetStatus")
+
+	vmGetMidiMessage = mod.NewProc("VBVMR_GetMidiMessage")
 )
 
 // login logs into the API,
 // attempts to launch Voicemeeter if it's not running,
 // initializes dirty parameters.
-func login(kindId string) {
+func login(kindId string) error {
 	res, _, _ := vmLogin.Call()
 	if res == 1 {
 		runVoicemeeter(kindId)
 		time.Sleep(time.Second)
 	} else if res != 0 {
 		err := fmt.Errorf("VBVMR_Login returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
-	fmt.Println("Logged into API")
+	fmt.Printf("Logged into Voicemeeter %s\n", kindId)
 	for pdirty() || mdirty() {
 	}
+	return nil
 }
 
 // logout logs out of the API,
 // delayed for 100ms to allow final operation to complete.
-func logout() {
+func logout(kindId string) error {
 	time.Sleep(100 * time.Millisecond)
 	res, _, _ := vmLogout.Call()
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_Logout returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
-	fmt.Println("Logged out of API")
+	fmt.Printf("Logged out of Voicemeeter %s\n", kindId)
+	return nil
 }
 
 // runVoicemeeter attempts to launch a Voicemeeter GUI of a kind.
-func runVoicemeeter(kindId string) {
+func runVoicemeeter(kindId string) error {
 	vals := map[string]uint64{
 		"basic":  1,
 		"banana": 2,
@@ -80,25 +81,24 @@ func runVoicemeeter(kindId string) {
 	res, _, _ := vmRunvm.Call(uintptr(vals[kindId]))
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_RunVoicemeeter returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
+	return nil
 }
 
 // getVersion returns the version of Voicemeeter as a string
-func getVersion() string {
+func getVersion() (string, error) {
 	var ver uint64
 	res, _, _ := vmGetvmVersion.Call(uintptr(unsafe.Pointer(&ver)))
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_GetVoicemeeterVersion returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return "", err
 	}
 	v1 := (ver & 0xFF000000) >> 24
 	v2 := (ver & 0x00FF0000) >> 16
 	v3 := (ver & 0x0000FF00) >> 8
 	v4 := ver & 0x000000FF
-	return fmt.Sprintf("%d.%d.%d.%d", v1, v2, v3, v4)
+	return fmt.Sprintf("%d.%d.%d.%d", v1, v2, v3, v4), nil
 }
 
 // pdirty returns true iff a parameter value has changed
@@ -115,41 +115,47 @@ func mdirty() bool {
 
 // ldirty returns true iff a level value has changed
 func ldirty(k *kind) bool {
-	_levelCache.stripLevelsBuff = make([]float32, (2*k.physIn)+(8*k.virtIn))
-	_levelCache.busLevelsBuff = make([]float32, 8*k.numBus())
+	_levelCache.stripLevelsBuff = make([]float64, (2*k.PhysIn)+(8*k.VirtIn))
+	_levelCache.busLevelsBuff = make([]float64, 8*k.NumBus())
 
-	for i := 0; i < (2*k.physIn)+(8*k.virtIn); i++ {
-		_levelCache.stripLevelsBuff[i] = float32(getLevel(_levelCache.stripMode, i))
+	for i := 0; i < (2*k.PhysIn)+(8*k.VirtIn); i++ {
+		val, _ := getLevel(_levelCache.stripMode, i)
+		_levelCache.stripLevelsBuff[i] = val
 		_levelCache.stripComp[i] = _levelCache.stripLevelsBuff[i] == _levelCache.stripLevels[i]
 	}
-	for i := 0; i < 8*k.numBus(); i++ {
-		_levelCache.busLevelsBuff[i] = float32(getLevel(3, i))
+	for i := 0; i < 8*k.NumBus(); i++ {
+		val, _ := getLevel(3, i)
+		_levelCache.busLevelsBuff[i] = val
 		_levelCache.busComp[i] = _levelCache.busLevelsBuff[i] == _levelCache.busLevels[i]
 	}
-	return !(allTrue(_levelCache.stripComp, (2*k.physIn)+(8*k.virtIn)) && allTrue(_levelCache.busComp, 8*k.numBus()))
+	return !(allTrue(_levelCache.stripComp, (2*k.PhysIn)+(8*k.VirtIn)) && allTrue(_levelCache.busComp, 8*k.NumBus()))
 }
 
 // getVMType returns the type of Voicemeeter, as a string
-func getVMType() string {
+func getVMType() (string, error) {
 	var type_ uint64
 	res, _, _ := vmGetvmType.Call(
 		uintptr(unsafe.Pointer(&type_)),
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_GetVoicemeeterType returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return "", err
 	}
 	vals := map[uint64]string{
 		1: "basic",
 		2: "banana",
 		3: "potato",
 	}
-	return vals[type_]
+	return vals[type_], nil
 }
 
 // getParameterFloat gets the value of a float parameter
-func getParameterFloat(name string) float64 {
+func getParameterFloat(name string) (float64, error) {
+	if vmsync {
+		time.Sleep(time.Duration(vmdelay) * time.Millisecond)
+		for pdirty() || mdirty() {
+		}
+	}
 	var value float32
 	b := append([]byte(name), 0)
 	res, _, _ := vmGetParamFloat.Call(
@@ -158,29 +164,33 @@ func getParameterFloat(name string) float64 {
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_GetParameterFloat returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return 0, err
 	}
-	return math.Round(float64(value)*10) / 10
+	return math.Round(float64(value)*10) / 10, nil
 }
 
 // setParameterFloat sets the value of a float parameter
-func setParameterFloat(name string, value float32) {
+func setParameterFloat(name string, value float64) error {
 	b1 := append([]byte(name), 0)
-	b2 := math.Float32bits(value)
+	b2 := math.Float32bits(float32(value))
 	res, _, _ := vmSetParamFloat.Call(
 		uintptr(unsafe.Pointer(&b1[0])),
 		uintptr(b2),
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_SetParameterFloat returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
+	return nil
 }
 
 // getParameterString gets the value of a string parameter
-func getParameterString(name string) string {
+func getParameterString(name string) (string, error) {
+	if vmsync {
+		time.Sleep(time.Duration(vmdelay) * time.Millisecond)
+		for pdirty() || mdirty() {
+		}
+	}
 	b1 := append([]byte(name), 0)
 	var b2 [512]byte
 	res, _, _ := vmGetParamString.Call(
@@ -189,15 +199,14 @@ func getParameterString(name string) string {
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_GetParameterStringA returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return "", err
 	}
 	str := bytes.Trim(b2[:], "\x00")
-	return string(str)
+	return string(str), nil
 }
 
-// getParameterString sets the value of a string parameter
-func setParameterString(name, value string) {
+// setParameterString sets the value of a string parameter
+func setParameterString(name, value string) error {
 	b1 := append([]byte(name), 0)
 	b2 := append([]byte(value), 0)
 	res, _, _ := vmSetParamString.Call(
@@ -206,26 +215,31 @@ func setParameterString(name, value string) {
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_SetParameterStringA returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
+	return nil
 }
 
 // setParametersMulti sets multiple parameters with a script
-func setParametersMulti(script string) {
+func setParametersMulti(script string) error {
 	b1 := append([]byte(script), 0)
 	res, _, _ := vmSetParameters.Call(
 		uintptr(unsafe.Pointer(&b1[0])),
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_SetParameters returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
+	return nil
 }
 
 // getMacroStatus gets a macrobutton value
-func getMacroStatus(id, mode int) float32 {
+func getMacroStatus(id, mode int) (float64, error) {
+	if vmsync {
+		time.Sleep(time.Duration(vmdelay) * time.Millisecond)
+		for pdirty() || mdirty() {
+		}
+	}
 	var state float32
 	res, _, _ := vmGetMacroStatus.Call(
 		uintptr(id),
@@ -234,14 +248,13 @@ func getMacroStatus(id, mode int) float32 {
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_MacroButton_GetStatus returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return 0, err
 	}
-	return state
+	return float64(state), nil
 }
 
 // setMacroStatus sets a macrobutton value
-func setMacroStatus(id, state, mode int) {
+func setMacroStatus(id, state, mode int) error {
 	res, _, _ := vmSetMacroStatus.Call(
 		uintptr(id),
 		uintptr(state),
@@ -249,9 +262,9 @@ func setMacroStatus(id, state, mode int) {
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_MacroButton_SetStatus returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return err
 	}
+	return nil
 }
 
 // getNumDevices returns the number of hardware input/output devices
@@ -266,7 +279,7 @@ func getNumDevices(dir string) uint64 {
 }
 
 // getDeviceDescription returns name, driver type and hwid for a given device
-func getDeviceDescription(i int, dir string) (string, uint64, string) {
+func getDeviceDescription(i int, dir string) (string, uint64, string, error) {
 	var t_ uint64
 	var b1 [512]byte
 	var b2 [512]byte
@@ -279,8 +292,7 @@ func getDeviceDescription(i int, dir string) (string, uint64, string) {
 		)
 		if res != 0 {
 			err := fmt.Errorf("VBVMR_Input_GetDeviceDescA returned %d", res)
-			fmt.Println(err)
-			os.Exit(1)
+			return "", 0, "", err
 		}
 	} else {
 		res, _, _ := vmGetDevDescOut.Call(
@@ -291,18 +303,17 @@ func getDeviceDescription(i int, dir string) (string, uint64, string) {
 		)
 		if res != 0 {
 			err := fmt.Errorf("VBVMR_Output_GetDeviceDescA returned %d", res)
-			fmt.Println(err)
-			os.Exit(1)
+			return "", 0, "", err
 		}
 	}
 	name := bytes.Trim(b1[:], "\x00")
 	hwid := bytes.Trim(b2[:], "\x00")
-	return string(name), t_, string(hwid)
+	return string(name), t_, string(hwid), nil
 }
 
 // getLevel returns a single level value of type type_ for channel[i]
-func getLevel(type_, i int) float32 {
-	var val float32
+func getLevel(type_, i int) (float64, error) {
+	var val float64
 	res, _, _ := vmGetLevelFloat.Call(
 		uintptr(type_),
 		uintptr(i),
@@ -310,8 +321,41 @@ func getLevel(type_, i int) float32 {
 	)
 	if res != 0 {
 		err := fmt.Errorf("VBVMR_GetLevel returned %d", res)
-		fmt.Println(err)
-		os.Exit(1)
+		return 0, err
 	}
-	return val
+	return val, nil
+}
+
+// getMidiMessage gets midi channel, pitch and velocity for a single midi input
+func getMidiMessage() bool {
+	var midi = newMidi()
+	var b1 [1024]byte
+	res, _, _ := vmGetMidiMessage.Call(
+		uintptr(unsafe.Pointer(&b1[0])),
+		uintptr(1024),
+	)
+	x := int(res)
+	if x < 0 {
+		err := fmt.Errorf("VBVMR_GetMidiMessage returned %d", res)
+		if err != nil {
+			fmt.Println(err)
+		}
+		return false
+	}
+	msg := bytes.Trim(b1[:], "\x00")
+	if len(msg) > 0 {
+		for i := 0; i < len(msg)%3; i++ {
+			msg = append(msg, 0)
+		}
+
+		for i := 0; i < len(msg); i += 3 {
+			var ch = int(msg[i])
+			var pitch = int(msg[i+1])
+			var vel = int(msg[i+2])
+			midi.channel = ch
+			midi.current = pitch
+			midi.cache[pitch] = vel
+		}
+	}
+	return len(msg) > 0
 }

bus.go

@@ -17,7 +17,7 @@ type iBus interface {
 	GetLabel() string
 	SetLabel(val string)
 	GetGain() float64
-	SetGain(val float32)
+	SetGain(val float64)
 	Mode() iBusMode
 	Levels() *levels
 	FadeTo(target float32, time_ int)
@@ -77,7 +77,7 @@ func (b *bus) GetGain() float64 {
 }
 
 // SetGain sets the value of the Gain parameter
-func (b *bus) SetGain(val float32) {
+func (b *bus) SetGain(val float64) {
 	b.setter_float("Gain", val)
 }
 
@@ -103,7 +103,7 @@ func (b *bus) FadeBy(change float32, time_ int) {
 	time.Sleep(time.Millisecond)
 }
 
-//physicalBus represents a single physical bus
+// physicalBus represents a single physical bus
 type physicalBus struct {
 	bus
 }
@@ -122,7 +122,7 @@ func (p *physicalBus) String() string {
 	return fmt.Sprintf("PhysicalBus%d", p.index)
 }
 
-//virtualBus represents a single virtual bus
+// virtualBus represents a single virtual bus
 type virtualBus struct {
 	bus
 }
@@ -305,8 +305,8 @@ func newBusLevels(i int, k *kind) levels {
 }
 
 // All returns the level values for a bus
-func (l *levels) All() []float32 {
-	var levels []float32
+func (l *levels) All() []float64 {
+	var levels []float64
 	for i := l.init; i < l.init+l.offset; i++ {
 		levels = append(levels, convertLevel(_levelCache.busLevels[i]))
 	}

button.go

@@ -14,7 +14,11 @@ func newButton(i int) button {
 
 // getter returns the value of a macrobutton parameter
 func (m *button) getter(mode int) bool {
-	return getMacroStatus(m.index, mode) == 1
+	val, err := getMacroStatus(m.index, mode)
+	if err != nil {
+		fmt.Println(err)
+	}
+	return val == 1
 }
 
 // setter sets the value of a macrobutton parameter

command.go

@@ -1,6 +1,6 @@
 package voicemeeter
 
-//command represents command (action) type parameters
+// command represents command (action) type parameters
 type command struct {
 	iRemote
 }
@@ -32,7 +32,7 @@ func (c *command) Restart() {
 
 // Lock locks or unlocks the Voiceemeter GUI
 func (c *command) Lock(val bool) {
-	var value float32
+	var value float64
 	if val {
 		value = 1
 	} else {

device.go

@@ -1,5 +1,7 @@
 package voicemeeter
 
+import "fmt"
+
 type devDesc struct {
 	Name, Type, Hwid string
 }
@@ -22,7 +24,10 @@ func (d *device) Outs() int {
 }
 
 func (d *device) Input(i int) devDesc {
-	n, t_, id := getDeviceDescription(i, "in")
+	n, t_, id, err := getDeviceDescription(i, "in")
+	if err != nil {
+		fmt.Println(err)
+	}
 	vals := map[uint64]string{
 		1: "mme",
 		3: "wdm",
@@ -33,7 +38,10 @@ func (d *device) Input(i int) devDesc {
 }
 
 func (d *device) Output(i int) devDesc {
-	n, t_, id := getDeviceDescription(i, "out")
+	n, t_, id, err := getDeviceDescription(i, "out")
+	if err != nil {
+		fmt.Println(err)
+	}
 	vals := map[uint64]string{
 		1: "mme",
 		3: "wdm",

examples/hotkeys/go.mod

@@ -0,0 +1,10 @@
+module main
+
+go 1.19
+
+require (
+	github.com/eiannone/keyboard v0.0.0-20220611211555-0d226195f203
+	github.com/onyx-and-iris/voicemeeter-api-go v1.7.0
+)
+
+require golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d // indirect

examples/hotkeys/go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/eiannone/keyboard v0.0.0-20220611211555-0d226195f203 h1:XBBHcIb256gUJtLmY22n99HaZTz+r2Z51xUPi01m3wg=
+github.com/eiannone/keyboard v0.0.0-20220611211555-0d226195f203/go.mod h1:E1jcSv8FaEny+OP/5k9UxZVw9YFWGj7eI4KR/iOBqCg=
+github.com/onyx-and-iris/voicemeeter-api-go v1.7.0 h1:WA1RGrfaWBOavgY2uoJltzy/rAgvs62PM3qzR+5/jt8=
+github.com/onyx-and-iris/voicemeeter-api-go v1.7.0/go.mod h1:zAdBhHXQ9n37CUbLizbOPmAutyZI8Ncqeu5e9u1Fy14=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d h1:/m5NbqQelATgoSPVC2Z23sR4kVNokFwDDyWh/3rGY+I=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

examples/hotkeys/main.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/eiannone/keyboard"
+	"github.com/onyx-and-iris/voicemeeter-api-go"
+)
+
+func main() {
+	if err := keyboard.Open(); err != nil {
+		log.Fatal(err)
+	}
+	defer func() {
+		_ = keyboard.Close()
+	}()
+
+	vm, err := vmConnect()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	fmt.Println("Press ESC to quit")
+Loop:
+	for {
+		char, key, err := keyboard.GetKey()
+		if err != nil {
+			panic(err)
+		}
+
+		switch char {
+		case '0':
+			fmt.Printf("Logged into Voicemeeter %s, version %s\n", vm.Type(), vm.Version())
+		case '1':
+			vm.Strip[0].SetMute(!vm.Strip[0].GetMute())
+		case '2':
+			if vm.Strip[3].GetGain() == -12.8 {
+				vm.Strip[3].FadeBy(-8.3, 500)
+			} else {
+				vm.Strip[3].FadeTo(-12.8, 500)
+			}
+		case '3':
+			vm.Strip[5].AppMute("Spotify", true)
+		default:
+			if key == keyboard.KeyEsc {
+				break Loop
+			}
+		}
+	}
+}
+
+func vmConnect() (*voicemeeter.Remote, error) {
+	vm, err := voicemeeter.NewRemote("potato", 0)
+	if err != nil {
+		return nil, err
+	}
+
+	err = vm.Login()
+	if err != nil {
+		return nil, err
+	}
+
+	return vm, nil
+}

examples/obs/README.md

@@ -0,0 +1,19 @@
+## Requirements
+
+-   [OBS Studio](https://obsproject.com/)
+-   [GOOBS Go Client for Websocket v5](https://github.com/andreykaipov/goobs)
+
+## About
+
+A simple demonstration showing how to sync OBS scene switches to Voicemeeter states. The script assumes you have connection info saved in
+a config file named `config.toml` placed next to `main.go`. It also assumes you have scenes named `START` `BRB` `END` and `LIVE`.
+
+A valid `config.toml` file might look like this:
+
+```toml
+[connection]
+Host="localhost"
+Port=4455
+Password="mystrongpass"
+
+```

examples/obs/go.mod

@@ -0,0 +1,17 @@
+module main
+
+go 1.18
+
+require (
+	github.com/BurntSushi/toml v1.2.0
+	github.com/andreykaipov/goobs v0.10.0
+	github.com/onyx-and-iris/voicemeeter-api-go v1.7.0
+)
+
+require (
+	github.com/buger/jsonparser v1.1.1 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/hashicorp/logutils v1.0.0 // indirect
+	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d // indirect
+	golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d // indirect
+)

examples/obs/go.sum

@@ -0,0 +1,20 @@
+github.com/BurntSushi/toml v1.2.0 h1:Rt8g24XnyGTyglgET/PRUNlrUeu9F5L+7FilkXfZgs0=
+github.com/BurntSushi/toml v1.2.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/andreykaipov/goobs v0.10.0 h1:wa4CxbYu/NqwUmx5E4/baDqYRYEmfHwg2T23RAg3jlU=
+github.com/andreykaipov/goobs v0.10.0/go.mod h1:EqG73Uu/4npyhXIWWszgRelNkEeIz+d0slUT6NKWYs4=
+github.com/buger/jsonparser v1.1.1 h1:2PnMjfWD7wBILjqQbt530v576A/cAbQvEW9gGIpYMUs=
+github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx27UK13J/0=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/hashicorp/logutils v1.0.0 h1:dLEQVugN8vlakKOUE3ihGLTZJRB4j+M2cdTm/ORI65Y=
+github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
+github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d h1:VhgPp6v9qf9Agr/56bj7Y/xa04UccTW04VP0Qed4vnQ=
+github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d/go.mod h1:YUTz3bUH2ZwIWBy3CJBeOBEugqcmXREj14T+iG/4k4U=
+github.com/onyx-and-iris/voicemeeter-api-go v1.7.0 h1:WA1RGrfaWBOavgY2uoJltzy/rAgvs62PM3qzR+5/jt8=
+github.com/onyx-and-iris/voicemeeter-api-go v1.7.0/go.mod h1:zAdBhHXQ9n37CUbLizbOPmAutyZI8Ncqeu5e9u1Fy14=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d h1:/m5NbqQelATgoSPVC2Z23sR4kVNokFwDDyWh/3rGY+I=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

examples/obs/main.go

@@ -0,0 +1,125 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"time"
+	"os"
+
+	"github.com/onyx-and-iris/voicemeeter-api-go"
+
+	"github.com/andreykaipov/goobs"
+	"github.com/andreykaipov/goobs/api/events"
+
+	"github.com/BurntSushi/toml"
+)
+
+func onStart(vm *voicemeeter.Remote) {
+	vm.Strip[0].SetMute(true)
+	vm.Strip[1].SetB1(true)
+	vm.Strip[2].SetB1(true)
+}
+
+func onBrb(vm *voicemeeter.Remote) {
+	vm.Strip[7].FadeTo(0, 500)
+	vm.Bus[0].SetMute(true)
+}
+
+func onLive(vm *voicemeeter.Remote) {
+	vm.Strip[0].SetMute(false)
+	vm.Strip[7].FadeTo(-6, 500)
+	vm.Strip[7].SetA3(true)
+	vm.Vban.InStream[0].SetOn(true)
+}
+
+func onEnd(vm *voicemeeter.Remote) {
+	vm.Strip[0].SetMute(true)
+	vm.Strip[1].SetMute(true)
+	vm.Strip[1].SetB1(false)
+	vm.Strip[2].SetMute(true)
+	vm.Strip[2].SetB1(false)
+	vm.Vban.InStream[0].SetOn(false)
+}
+
+func main() {
+	vm, err := vmConnect()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	obs, err := obsConnect()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer obs.Disconnect()
+
+	version, _ := obs.General.GetVersion()
+	fmt.Printf("OBS Studio version: %s\n", version.ObsVersion)
+	fmt.Printf("Websocket server version: %s\n", version.ObsWebSocketVersion)
+
+	go obs.Listen(func(event any) {
+		switch e := event.(type) {
+		case *events.CurrentProgramSceneChanged:
+			fmt.Printf("Switched to scene %s\n", e.SceneName)
+			switch e.SceneName {
+			case "START":
+				onStart(vm)
+			case "BRB":
+				onBrb(vm)
+			case "LIVE":
+				onLive(vm)
+			case "END":
+				onEnd(vm)
+			}
+		}
+	})
+
+	time.Sleep(30 * time.Second)
+}
+
+func vmConnect() (*voicemeeter.Remote, error) {
+	vm, err := voicemeeter.NewRemote("potato", 0)
+	if err != nil {
+		return nil, err
+	}
+
+	err = vm.Login()
+	if err != nil {
+		return nil, err
+	}
+
+	return vm, nil
+}
+
+func obsConnect() (*goobs.Client, error)  {
+	type (
+		connection struct {
+			Host      	string
+			Port       	int
+			Password 	string
+		}
+
+		config struct {
+			Connection map[string]connection
+		}
+	)
+
+	f := "config.toml"
+	if _, err := os.Stat(f); err != nil {
+		f = "./config.toml"
+	}
+
+	var c config
+	_, err := toml.DecodeFile(f, &c.Connection)
+	if err != nil {
+		return nil, err
+	}
+	conn := c.Connection["connection"]
+
+	obs, err := goobs.New(fmt.Sprintf("%s:%d", conn.Host, conn.Port), goobs.WithPassword(conn.Password))
+	if err != nil {
+		return nil, err
+	}
+	return obs, nil
+}

examples/observer/main.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/onyx-and-iris/voicemeeter-api-go"
+)
+
+// observer represents a single receiver of updates
+type observer struct {
+	vm *voicemeeter.Remote
+}
+
+// newObserver add ldirty events to the eventlist and returns an observer type
+func newObserver(vm *voicemeeter.Remote) *observer {
+	vm.EventAdd("ldirty")
+	return &observer{vm}
+}
+
+// register registers this observer to receive updates
+func (o observer) register() {
+	o.vm.Register(o)
+}
+
+// deregister deregisters this observer to receive updates
+func (o observer) deregister() {
+	o.vm.Deregister(o)
+}
+
+// OnUpdate satisfies the observer interface defined in publisher.go
+// for each event type an action is triggered when the event occurs.
+func (o observer) OnUpdate(subject string) {
+	if subject == "pdirty" {
+		fmt.Println("pdirty!")
+	} else if subject == "mdirty" {
+		fmt.Println("mdirty!")
+	} else if subject == "midi" {
+		var current = o.vm.Midi.Current()
+		var val = o.vm.Midi.Get(current)
+		fmt.Printf("Value of midi button %d: %d\n", current, val)
+	} else if subject == "ldirty" {
+		fmt.Printf("%v %v %v %v %v %v %v %v\n",
+			o.vm.Bus[0].Levels().IsDirty(),
+			o.vm.Bus[1].Levels().IsDirty(),
+			o.vm.Bus[2].Levels().IsDirty(),
+			o.vm.Bus[3].Levels().IsDirty(),
+			o.vm.Bus[4].Levels().IsDirty(),
+			o.vm.Bus[5].Levels().IsDirty(),
+			o.vm.Bus[6].Levels().IsDirty(),
+			o.vm.Bus[7].Levels().IsDirty(),
+		)
+	}
+}
+
+// main connects to Voiceemeter, registers observer for updates
+// runs updates for 30 seconds and then deregisters observer.
+func main() {
+	vm, err := vmConnect()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	o := newObserver(vm)
+	o.register()
+	time.Sleep(30 * time.Second)
+	o.deregister()
+}
+
+// vmConnect connects to Voicemeeter potato and logs into the API
+func vmConnect() (*voicemeeter.Remote, error) {
+	vm, err := voicemeeter.NewRemote("potato", 0)
+	if err != nil {
+		return nil, err
+	}
+
+	err = vm.Login()
+	if err != nil {
+		return nil, err
+	}
+
+	return vm, nil
+}

examples/observer/observer.go

@@ -1,46 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"strings"
-	"time"
-
-	"github.com/onyx-and-iris/voicemeeter-api-go"
-)
-
-type observer struct {
-	vm *voicemeeter.Remote
-}
-
-func (o observer) OnUpdate(subject string) {
-	if strings.Compare(subject, "pdirty") == 0 {
-		fmt.Println("pdirty!")
-	}
-	if strings.Compare(subject, "mdirty") == 0 {
-		fmt.Println("mdirty!")
-	}
-	if strings.Compare(subject, "ldirty") == 0 {
-		fmt.Printf("%v %v %v %v %v %v %v %v\n",
-			o.vm.Bus[0].Levels().IsDirty(),
-			o.vm.Bus[1].Levels().IsDirty(),
-			o.vm.Bus[2].Levels().IsDirty(),
-			o.vm.Bus[3].Levels().IsDirty(),
-			o.vm.Bus[4].Levels().IsDirty(),
-			o.vm.Bus[5].Levels().IsDirty(),
-			o.vm.Bus[6].Levels().IsDirty(),
-			o.vm.Bus[7].Levels().IsDirty(),
-		)
-	}
-}
-
-func main() {
-	vmRem := voicemeeter.NewRemote("potato")
-	vmRem.Login()
-
-	o := observer{vmRem}
-	vmRem.Register(o)
-	time.Sleep(30 * time.Second)
-	vmRem.Deregister(o)
-
-	vmRem.Logout()
-}

examples/vm-cli/README.md

@@ -0,0 +1,25 @@
+## About
+
+A simple voicemeeter-cli program. Offers ability to toggle, get and set parameters.
+
+## Use
+
+Toggle with `!` prefix, get by excluding `=` and set by including `=`. Mix and match arguments.
+You may pass an optional flag -kind to set the kind of Voicemeeter. Defaults to banana.
+You may pass an optional flag -delay to set a delay on the getters. Defaults to 15ms.
+
+for example:
+
+`go run .\main.go -kind=potato -delay=18 strip[0].mute=0 strip[0].mute !strip[0].mute strip[0].mute bus[0].gain=-8.8 command.lock=1`
+
+Expected output:
+
+```
+Logged into Voicemeeter potato
+Running command strip[0].mute=0
+Value of strip[0].mute is: 0
+Toggling strip[0].mute
+Value of strip[0].mute is: 1
+Running command bus[0].gain=-8.8
+Running command command.lock=1
+```

examples/vm-cli/main.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"strings"
+
+	"github.com/onyx-and-iris/voicemeeter-api-go"
+)
+
+func main() {
+	kindId := flag.String("kind", "banana", "kind of voicemeeter")
+	delay := flag.Int("delay", 15, "delay between commands")
+	flag.Parse()
+
+	vm, err := vmConnect(kindId, delay)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	err = run_commands(vm)
+	if err != nil {
+		fmt.Println(err)
+	}
+}
+
+func vmConnect(kindId *string, delay *int) (*voicemeeter.Remote, error) {
+	vm, err := voicemeeter.NewRemote(*kindId, *delay)
+	if err != nil {
+		return nil, err
+	}
+
+	err = vm.Login()
+	if err != nil {
+		return nil, err
+	}
+
+	return vm, nil
+}
+
+func run_commands(vm *voicemeeter.Remote) error {
+	for _, arg := range flag.Args() {
+		if arg[0] == '!' {
+			val, err := vm.GetFloat(arg[1:])
+			if err != nil {
+				err = fmt.Errorf("unable to toggle %s", arg[1:])
+				return err
+			}
+			vm.SetFloat(arg[1:], 1-val)
+			fmt.Println("Toggling", arg[1:])
+		} else {
+			if strings.Contains(arg, "=") {
+				fmt.Println("Running command", arg)
+				err := vm.SendText(arg)
+				if err != nil {
+					err = fmt.Errorf("unable to set %s", arg)
+					return err
+				}
+			} else {
+				val_f, err := vm.GetFloat(arg)
+				if err != nil {
+					val_s, err := vm.GetString(arg)
+					if err != nil {
+						err = fmt.Errorf("unable to get %s", arg)
+						return err
+					}
+					fmt.Println("Value of", arg, "is:", val_s)
+				} else {
+					fmt.Println("Value of", arg, "is:", val_f)
+				}
+			}
+		}
+	}
+	return nil
+}

helper_test.go

@@ -0,0 +1,22 @@
+package voicemeeter
+
+import (
+	"log"
+	"os"
+	"testing"
+)
+
+var (
+	vm, err = NewRemote("potato", 30)
+)
+
+func TestMain(m *testing.M) {
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	vm.Login()
+	code := m.Run()
+	vm.Logout()
+	os.Exit(code)
+}

iremote.go

@@ -19,7 +19,11 @@ func (ir *iRemote) identifier() string {
 // getter_bool returns the value of a boolean parameter
 func (ir *iRemote) getter_bool(p string) bool {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	return getParameterFloat(param) == 1
+	val, err := getParameterFloat(param)
+	if err != nil {
+		fmt.Println(err)
+	}
+	return val == 1
 }
 
 // setter_bool sets the value of a boolean parameter
@@ -31,41 +35,65 @@ func (ir *iRemote) setter_bool(p string, v bool) {
 	} else {
 		value = 0
 	}
-	setParameterFloat(param, float32(value))
+	err := setParameterFloat(param, float64(value))
+	if err != nil {
+		fmt.Println(err)
+	}
 }
 
 // getter_int returns the value of an int parameter p
 func (ir *iRemote) getter_int(p string) int {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	return int(getParameterFloat(param))
+	val, err := getParameterFloat(param)
+	if err != nil {
+		fmt.Println(err)
+	}
+	return int(val)
 }
 
 // setter_int sets the value v of an int parameter p
 func (ir *iRemote) setter_int(p string, v int) {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	setParameterFloat(param, float32(v))
+	err := setParameterFloat(param, float64(v))
+	if err != nil {
+		fmt.Println(err)
+	}
 }
 
 // getter_float returns the value of an int parameter p
 func (ir *iRemote) getter_float(p string) float64 {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	return getParameterFloat(param)
+	val, err := getParameterFloat(param)
+	if err != nil {
+		fmt.Println(err)
+	}
+	return val
 }
 
 // setter_float sets the value v of an int parameter p
-func (ir *iRemote) setter_float(p string, v float32) {
+func (ir *iRemote) setter_float(p string, v float64) {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	setParameterFloat(param, float32(v))
+	err := setParameterFloat(param, float64(v))
+	if err != nil {
+		fmt.Println(err)
+	}
 }
 
 // getter_string returns the value of a string parameter p
 func (ir *iRemote) getter_string(p string) string {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	return getParameterString(param)
+	val, err := getParameterString(param)
+	if err != nil {
+		fmt.Println(err)
+	}
+	return val
 }
 
 // setter_string sets the value v of a string parameter p
 func (ir *iRemote) setter_string(p, v string) {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
-	setParameterString(param, v)
+	err := setParameterString(param, v)
+	if err != nil {
+		fmt.Println(err)
+	}
 }

kinds.go

@@ -9,25 +9,25 @@ var basic, banana, potato *kind
 
 // A kind represents a Voicemeeter kinds layout
 type kind struct {
-	name                                              string
-	physIn, virtIn, physOut, virtOut, vbanIn, vbanOut int
+	Name                                              string
+	PhysIn, VirtIn, PhysOut, VirtOut, VbanIn, VbanOut int
 }
 
 // numStrip returns the total number of strips for a kind
-func (k *kind) numStrip() int {
-	n := k.physIn + k.virtIn
+func (k *kind) NumStrip() int {
+	n := k.PhysIn + k.VirtIn
 	return n
 }
 
 // numBus returns the total number of buses for a kind
-func (k *kind) numBus() int {
-	n := k.physOut + k.virtOut
+func (k *kind) NumBus() int {
+	n := k.PhysOut + k.VirtOut
 	return n
 }
 
 // String implements the fmt.stringer interface
 func (k *kind) String() string {
-	return fmt.Sprintf("%s%s", strings.ToUpper(k.name[:1]), k.name[1:])
+	return fmt.Sprintf("%s%s", strings.ToUpper(k.Name[:1]), k.Name[1:])
 }
 
 // newBasicKind returns a basic kind struct address

levels.go

@@ -25,20 +25,20 @@ var _levelCache *levelCache
 // levelCache defines level slices used by the pooler to track updates
 type levelCache struct {
 	stripMode       int
-	stripLevels     []float32
-	busLevels       []float32
-	stripLevelsBuff []float32
-	busLevelsBuff   []float32
+	stripLevels     []float64
+	busLevels       []float64
+	stripLevelsBuff []float64
+	busLevelsBuff   []float64
 	stripComp       []bool
 	busComp         []bool
 }
 
 // newLevelCache returns a levelCache struct address
 func newLevelCache(k *kind) *levelCache {
-	stripLevels := make([]float32, (2*k.physIn)+(8*k.virtIn))
-	busLevels := make([]float32, 8*k.numBus())
-	stripComp := make([]bool, (2*k.physIn)+(8*k.virtIn))
-	busComp := make([]bool, 8*k.numBus())
+	stripLevels := make([]float64, (2*k.PhysIn)+(8*k.VirtIn))
+	busLevels := make([]float64, 8*k.NumBus())
+	stripComp := make([]bool, (2*k.PhysIn)+(8*k.VirtIn))
+	busComp := make([]bool, 8*k.NumBus())
 	if _levelCache == nil {
 		_levelCache = &levelCache{stripMode: 0, stripLevels: stripLevels, busLevels: busLevels, stripComp: stripComp, busComp: busComp}
 	}

midi.go

@@ -0,0 +1,28 @@
+package voicemeeter
+
+var midi *midi_t
+
+type midi_t struct {
+	channel int
+	current int
+	cache   map[int]int
+}
+
+func newMidi() *midi_t {
+	if midi == nil {
+		midi = &midi_t{0, 0, map[int]int{}}
+	}
+	return midi
+}
+
+func (m *midi_t) Channel() int {
+	return m.channel
+}
+
+func (m *midi_t) Current() int {
+	return m.current
+}
+
+func (m *midi_t) Get(key int) int {
+	return m.cache[key]
+}

path.go

@@ -3,7 +3,7 @@ package voicemeeter
 import (
 	"errors"
 	"fmt"
-	"os"
+	"log"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -49,8 +49,7 @@ func dllPath() (string, error) {
 func getDllPath() string {
 	path, err := dllPath()
 	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
+		log.Fatal(err)
 	}
 	return path
 }

publisher.go

@@ -40,43 +40,99 @@ func (p *publisher) notify(subject string) {
 	}
 }
 
+type event struct {
+	pdirty bool
+	mdirty bool
+	midi   bool
+	ldirty bool
+}
+
+func newEvent() *event {
+	return &event{true, true, true, false}
+}
+
+func (e *event) Add(ev string) {
+	switch ev {
+	case "pdirty":
+		e.pdirty = true
+	case "mdirty":
+		e.mdirty = true
+	case "midi":
+		e.midi = true
+	case "ldirty":
+		e.ldirty = true
+	}
+}
+
+func (e *event) Remove(ev string) {
+	switch ev {
+	case "pdirty":
+		e.pdirty = false
+	case "mdirty":
+		e.mdirty = false
+	case "midi":
+		e.midi = false
+	case "ldirty":
+		e.ldirty = false
+	}
+}
+
 // pooler continuously polls the dirty paramters
 // it is expected to be run in a goroutine
 type pooler struct {
-	k   *kind
-	run bool
+	k     *kind
+	run   bool
+	event *event
 	publisher
 }
 
 func newPooler(k *kind) *pooler {
 	p := &pooler{
-		k:   k,
-		run: true,
+		k:     k,
+		run:   true,
+		event: newEvent(),
 	}
-	go p.runner()
+	go p.parameters()
+	go p.macrobuttons()
+	go p.midi()
 	go p.levels()
 	return p
 }
 
-func (p *pooler) runner() {
+func (p *pooler) parameters() {
 	for p.run {
-		if pdirty() {
+		if p.event.pdirty && pdirty() {
 			p.notify("pdirty")
 		}
-		if mdirty() {
+		time.Sleep(33 * time.Millisecond)
+	}
+}
+
+func (p *pooler) macrobuttons() {
+	for p.run {
+		if p.event.mdirty && mdirty() {
 			p.notify("mdirty")
 		}
 		time.Sleep(33 * time.Millisecond)
 	}
 }
 
+func (p *pooler) midi() {
+	for p.run {
+		if p.event.midi && getMidiMessage() {
+			p.notify("midi")
+		}
+		time.Sleep(33 * time.Millisecond)
+	}
+}
+
 func (p *pooler) levels() {
 	_levelCache = newLevelCache(p.k)
 
 	for p.run {
-		if ldirty(p.k) {
-			update(_levelCache.stripLevels, _levelCache.stripLevelsBuff, (2*p.k.physIn)+(8*p.k.virtIn))
-			update(_levelCache.busLevels, _levelCache.busLevelsBuff, 8*p.k.numBus())
+		if p.event.ldirty && ldirty(p.k) {
+			update(_levelCache.stripLevels, _levelCache.stripLevelsBuff, (2*p.k.PhysIn)+(8*p.k.VirtIn))
+			update(_levelCache.busLevels, _levelCache.busLevelsBuff, 8*p.k.NumBus())
 			p.notify("ldirty")
 		}
 		time.Sleep(33 * time.Millisecond)

remote.go

@@ -2,12 +2,12 @@ package voicemeeter
 
 import (
 	"fmt"
-	"os"
+	"time"
 )
 
 // A Remote type represents the API for a kind
 type Remote struct {
-	kind     *kind
+	Kind     *kind
 	Strip    []iStrip
 	Bus      []iBus
 	Button   []button
@@ -15,35 +15,54 @@ type Remote struct {
 	Vban     *vban
 	Device   *device
 	Recorder *recorder
+	Midi     *midi_t
 
 	pooler *pooler
 }
 
 // String implements the fmt.stringer interface
 func (r *Remote) String() string {
-	return fmt.Sprintf("Voicemeeter %s", r.kind)
+	return fmt.Sprintf("Voicemeeter %s", r.Kind)
 }
 
 // Login logs into the API
 // then it intializes the pooler
-func (r *Remote) Login() {
-	login(r.kind.name)
-	r.pooler = newPooler(r.kind)
+func (r *Remote) Login() error {
+	err := login(r.Kind.Name)
+	if err != nil {
+		return err
+	}
+	r.pooler = newPooler(r.Kind)
+	return nil
 }
 
 // Logout logs out of the API
 // it also terminates the pooler
-func (r *Remote) Logout() {
+func (r *Remote) Logout() error {
 	r.pooler.run = false
-	logout()
+	err := logout(r.Kind.Name)
+	if err != nil {
+		return err
+	}
+	return nil
 }
 
+// Type returns the type of Voicemeeter (basic, banana, potato)
 func (r *Remote) Type() string {
-	return getVMType()
+	val, err := getVMType()
+	if err != nil {
+		fmt.Println(err)
+	}
+	return val
 }
 
+// Version returns the version of Voicemeeter as a string
 func (r *Remote) Version() string {
-	return getVersion()
+	val, err := getVersion()
+	if err != nil {
+		fmt.Println(err)
+	}
+	return val
 }
 
 // Pdirty returns true iff a parameter value has changed
@@ -56,8 +75,56 @@ func (r *Remote) Mdirty() bool {
 	return mdirty()
 }
 
-func (r *Remote) SendText(script string) {
-	setParametersMulti(script)
+// Sync is a helper method that waits for dirty parameters to clear
+func (r *Remote) Sync() {
+	time.Sleep(time.Duration(vmdelay) * time.Millisecond)
+	for r.Pdirty() || r.Mdirty() {
+	}
+}
+
+// Gets a float parameter value
+func (r *Remote) GetFloat(name string) (float64, error) {
+	val, err := getParameterFloat(name)
+	if err != nil {
+		return 0, err
+	}
+	return val, nil
+}
+
+// Sets a float paramter value
+func (r *Remote) SetFloat(name string, value float64) error {
+	err := setParameterFloat(name, value)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// Gets a string parameter value
+func (r *Remote) GetString(name string) (string, error) {
+	val, err := getParameterString(name)
+	if err != nil {
+		return "", err
+	}
+	return val, nil
+}
+
+// Sets a string paramter value
+func (r *Remote) SetString(name, value string) error {
+	err := setParameterString(name, value)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// SendText sets multiple parameters by script
+func (r *Remote) SendText(script string) error {
+	err := setParametersMulti(script)
+	if err != nil {
+		return err
+	}
+	return nil
 }
 
 // Register forwards the register method to Pooler
@@ -65,11 +132,22 @@ func (r *Remote) Register(o observer) {
 	r.pooler.Register(o)
 }
 
-// Register forwards the deregister method to Pooler
+// Deregister forwards the deregister method to Pooler
 func (r *Remote) Deregister(o observer) {
 	r.pooler.Deregister(o)
 }
 
+// EventAdd adds an event to the Pooler
+func (r *Remote) EventAdd(event string) {
+	r.pooler.event.Add(event)
+}
+
+// EventRemove removes an event from the Pooler
+func (r *Remote) EventRemove(event string) {
+	r.pooler.event.Remove(event)
+}
+
+// remoteBuilder defines the interface builder types must satisfy
 type remoteBuilder interface {
 	setKind() remoteBuilder
 	makeStrip() remoteBuilder
@@ -79,6 +157,7 @@ type remoteBuilder interface {
 	makeVban() remoteBuilder
 	makeDevice() remoteBuilder
 	makeRecorder() remoteBuilder
+	makeMidi() remoteBuilder
 	Build() remoteBuilder
 	Get() *Remote
 }
@@ -103,13 +182,15 @@ func (d *director) Get() *Remote {
 	return d.builder.Get()
 }
 
+// genericBuilder represents a generic builder type
 type genericBuilder struct {
 	k *kind
 	r Remote
 }
 
+// setKind sets the kind for a builder of a kind
 func (b *genericBuilder) setKind() remoteBuilder {
-	b.r.kind = b.k
+	b.r.Kind = b.k
 	return b
 }
 
@@ -117,9 +198,9 @@ func (b *genericBuilder) setKind() remoteBuilder {
 // []iStrip comprises of both physical and virtual strip types
 func (b *genericBuilder) makeStrip() remoteBuilder {
 	fmt.Println("building strip")
-	_strip := make([]iStrip, b.k.numStrip())
-	for i := 0; i < b.k.numStrip(); i++ {
-		if i < b.k.physIn {
+	_strip := make([]iStrip, b.k.NumStrip())
+	for i := 0; i < b.k.NumStrip(); i++ {
+		if i < b.k.PhysIn {
 			_strip[i] = newPhysicalStrip(i, b.k)
 		} else {
 			_strip[i] = newVirtualStrip(i, b.k)
@@ -133,9 +214,9 @@ func (b *genericBuilder) makeStrip() remoteBuilder {
 // []t_bus comprises of both physical and virtual bus types
 func (b *genericBuilder) makeBus() remoteBuilder {
 	fmt.Println("building bus")
-	_bus := make([]iBus, b.k.numBus())
-	for i := 0; i < b.k.numBus(); i++ {
-		if i < b.k.physOut {
+	_bus := make([]iBus, b.k.NumBus())
+	for i := 0; i < b.k.NumBus(); i++ {
+		if i < b.k.PhysOut {
 			_bus[i] = newPhysicalBus(i, b.k)
 		} else {
 			_bus[i] = newVirtualBus(i, b.k)
@@ -184,50 +265,93 @@ func (b *genericBuilder) makeRecorder() remoteBuilder {
 	return b
 }
 
+// makeMidi makes a midi type and assigns it to remote.Midi
+func (b *genericBuilder) makeMidi() remoteBuilder {
+	fmt.Println("building midi")
+	b.r.Midi = newMidi()
+	return b
+}
+
 // Get returns a fully constructed remote type for a kind
 func (b *genericBuilder) Get() *Remote {
 	return &b.r
 }
 
+// basicBuilder represents a builder specific to basic type
 type basicBuilder struct {
 	genericBuilder
 }
 
 // Build defines the steps required to build a basic type
 func (basb *genericBuilder) Build() remoteBuilder {
-	return basb.setKind().makeStrip().makeBus().makeButton().makeCommand().makeVban().makeDevice()
+	return basb.setKind().
+		makeStrip().
+		makeBus().
+		makeButton().
+		makeCommand().
+		makeVban().
+		makeDevice().
+		makeMidi()
 }
 
+// bananaBuilder represents a builder specific to banana type
 type bananaBuilder struct {
 	genericBuilder
 }
 
 // Build defines the steps required to build a banana type
 func (banb *bananaBuilder) Build() remoteBuilder {
-	return banb.setKind().makeStrip().makeBus().makeButton().makeCommand().makeVban().makeDevice().makeRecorder()
+	return banb.setKind().
+		makeStrip().
+		makeBus().
+		makeButton().
+		makeCommand().
+		makeVban().
+		makeDevice().
+		makeRecorder().
+		makeMidi()
 }
 
+// potatoBuilder represents a builder specific to potato type
 type potatoBuilder struct {
 	genericBuilder
 }
 
 // Build defines the steps required to build a potato type
 func (potb *potatoBuilder) Build() remoteBuilder {
-	return potb.setKind().makeStrip().makeBus().makeButton().makeCommand().makeVban().makeDevice().makeRecorder()
+	return potb.setKind().
+		makeStrip().
+		makeBus().
+		makeButton().
+		makeCommand().
+		makeVban().
+		makeDevice().
+		makeRecorder().
+		makeMidi()
 }
 
+var (
+	vmsync  bool
+	vmdelay int
+)
+
 // NewRemote returns a Remote type for a kind
 // this is the interface entry point
-func NewRemote(kindId string) *Remote {
+func NewRemote(kindId string, delay int) (*Remote, error) {
 	_kind, ok := kindMap[kindId]
 	if !ok {
 		err := fmt.Errorf("unknown Voicemeeter kind '%s'", kindId)
-		fmt.Println(err)
-		os.Exit(1)
+		return nil, err
 	}
+	if delay < 0 {
+		err := fmt.Errorf("invalid delay value. should be >= 0")
+		return nil, err
+	}
+	vmsync = delay > 0
+	vmdelay = delay
 
 	director := director{}
-	switch _kind.name {
+	switch _kind.Name {
 	case "basic":
 		director.SetBuilder(&basicBuilder{genericBuilder{_kind, Remote{}}})
 	case "banana":
@@ -236,5 +360,5 @@ func NewRemote(kindId string) *Remote {
 		director.SetBuilder(&potatoBuilder{genericBuilder{_kind, Remote{}}})
 	}
 	director.Construct()
-	return director.Get()
+	return director.Get(), nil
 }

remote_test.go

@@ -8,7 +8,7 @@ import (
 
 func TestGetBasicRemote(t *testing.T) {
 	//t.Skip("skipping test")
-	__rem := NewRemote("basic")
+	__rem, _ := NewRemote("basic", 0)
 	t.Run("Should return a remote basic type", func(t *testing.T) {
 		assert.NotNil(t, __rem)
 	})
@@ -34,7 +34,7 @@ func TestGetBasicRemote(t *testing.T) {
 
 func TestGetBananaRemote(t *testing.T) {
 	//t.Skip("skipping test")
-	__rem := NewRemote("banana")
+	__rem, _ := NewRemote("banana", 0)
 	t.Run("Should return a remote banana type", func(t *testing.T) {
 		assert.NotNil(t, __rem)
 	})
@@ -60,7 +60,7 @@ func TestGetBananaRemote(t *testing.T) {
 
 func TestGetPotatoRemote(t *testing.T) {
 	//t.Skip("skipping test")
-	__rem := NewRemote("potato")
+	__rem, _ := NewRemote("potato", 0)
 	t.Run("Should return a remote basic type", func(t *testing.T) {
 		assert.NotNil(t, __rem)
 	})
@@ -83,3 +83,25 @@ func TestGetPotatoRemote(t *testing.T) {
 		assert.NotNil(t, __rem.Recorder)
 	})
 }
+
+func TestSetAndGetFloatParameter(t *testing.T) {
+	//t.Skip("skipping test")
+	var param = "strip[0].mute"
+	var exp = float64(1)
+	vm.SetFloat(param, 1)
+	t.Run("Should get a float parameter", func(t *testing.T) {
+		val, _ := vm.GetFloat(param)
+		assert.Equal(t, exp, val)
+	})
+}
+
+func TestSetAndGetStringParameter(t *testing.T) {
+	//t.Skip("skipping test")
+	var param = "strip[0].label"
+	var exp = "test0"
+	vm.SetString(param, exp)
+	t.Run("Should get a string parameter", func(t *testing.T) {
+		val, _ := vm.GetString(param)
+		assert.Equal(t, exp, val)
+	})
+}

strip.go

@@ -19,20 +19,20 @@ type iStrip interface {
 	GetLabel() string
 	SetLabel(val string)
 	GetGain() float64
-	SetGain(val float32)
+	SetGain(val float64)
 	GetMc() bool
 	SetMc(val bool)
 	GetComp() float64
-	SetComp(val float32)
+	SetComp(val float64)
 	GetGate() float64
-	SetGate(val float32)
+	SetGate(val float64)
 	GetAudibility() float64
-	SetAudibility(val float32)
+	SetAudibility(val float64)
 	GainLayer() []gainLayer
 	Levels() *levels
-	FadeTo(target float32, time_ int)
-	FadeBy(change float32, time_ int)
-	AppGain(name string, gain float32)
+	FadeTo(target float64, time_ int)
+	FadeBy(change float64, time_ int)
+	AppGain(name string, gain float64)
 	AppMute(name string, val bool)
 	iOutputs
 }
@@ -101,7 +101,7 @@ func (s *strip) GetGain() float64 {
 }
 
 // SetGain sets the value of the Gain parameter
-func (s *strip) SetGain(val float32) {
+func (s *strip) SetGain(val float64) {
 	s.setter_float("Gain", val)
 }
 
@@ -116,18 +116,18 @@ func (s *strip) Levels() *levels {
 }
 
 // FadeTo sets the value of gain to target over at time interval of time_
-func (s *strip) FadeTo(target float32, time_ int) {
+func (s *strip) FadeTo(target float64, time_ int) {
 	s.setter_string("FadeTo", fmt.Sprintf("(\"%f\", %d)", target, time_))
 	time.Sleep(time.Millisecond)
 }
 
 // FadeBy adjusts the value of gain by change over a time interval of time_
-func (s *strip) FadeBy(change float32, time_ int) {
+func (s *strip) FadeBy(change float64, time_ int) {
 	s.setter_string("FadeBy", fmt.Sprintf("(\"%f\", %d)", change, time_))
 	time.Sleep(time.Millisecond)
 }
 
-//physicalStrip represents a single physical strip
+// physicalStrip represents a single physical strip
 type physicalStrip struct {
 	strip
 }
@@ -155,7 +155,7 @@ func (p *physicalStrip) GetComp() float64 {
 }
 
 // SetComp sets the value of the Comp parameter
-func (p *physicalStrip) SetComp(val float32) {
+func (p *physicalStrip) SetComp(val float64) {
 	p.setter_float("Comp", val)
 }
 
@@ -165,7 +165,7 @@ func (p *physicalStrip) GetGate() float64 {
 }
 
 // SetGate sets the value of the Gate parameter
-func (p *physicalStrip) SetGate(val float32) {
+func (p *physicalStrip) SetGate(val float64) {
 	p.setter_float("Gate", val)
 }
 
@@ -175,7 +175,7 @@ func (p *physicalStrip) GetAudibility() float64 {
 }
 
 // SetAudibility sets the value of the Audibility parameter
-func (p *physicalStrip) SetAudibility(val float32) {
+func (p *physicalStrip) SetAudibility(val float64) {
 	p.setter_float("Audibility", val)
 }
 
@@ -189,7 +189,7 @@ func (p *physicalStrip) SetMc(val bool) {
 	panic("invalid parameter MC for physicalStrip")
 }
 
-//virtualStrip represents a single virtual strip
+// virtualStrip represents a single virtual strip
 type virtualStrip struct {
 	strip
 }
@@ -227,7 +227,7 @@ func (v *virtualStrip) GetComp() float64 {
 }
 
 // SetComp panics reason invalid parameter
-func (v *virtualStrip) SetComp(val float32) {
+func (v *virtualStrip) SetComp(val float64) {
 	panic("invalid parameter Comp for virtualStrip")
 }
 
@@ -237,7 +237,7 @@ func (v *virtualStrip) GetGate() float64 {
 }
 
 // SetGate panics reason invalid parameter
-func (v *virtualStrip) SetGate(val float32) {
+func (v *virtualStrip) SetGate(val float64) {
 	panic("invalid parameter Gate for virtualStrip")
 }
 
@@ -247,12 +247,12 @@ func (v *virtualStrip) GetAudibility() float64 {
 }
 
 // SetAudibility panics reason invalid parameter
-func (v *virtualStrip) SetAudibility(val float32) {
+func (v *virtualStrip) SetAudibility(val float64) {
 	panic("invalid parameter Audibility for virtualStrip")
 }
 
 // AppGain sets the gain in db by val for the app matching name.
-func (v *strip) AppGain(name string, val float32) {
+func (v *strip) AppGain(name string, val float64) {
 	v.setter_string("AppGain", fmt.Sprintf("(\"%s\", %f)", name, val))
 }
 
@@ -264,7 +264,7 @@ func (v *strip) AppMute(name string, val bool) {
 	} else {
 		value = 0
 	}
-	v.setter_string("AppMute", fmt.Sprintf("(\"%s\", %f)", name, float32(value)))
+	v.setter_string("AppMute", fmt.Sprintf("(\"%s\", %f)", name, float64(value)))
 }
 
 // gainLayer represents the 8 gainlayers for a single strip
@@ -284,7 +284,7 @@ func (gl *gainLayer) Get() float64 {
 }
 
 // Set sets the gain value for a single gainlayer
-func (gl *gainLayer) Set(val float32) {
+func (gl *gainLayer) Set(val float64) {
 	gl.setter_float(fmt.Sprintf("gainlayer[%d]", gl.index), val)
 }
 
@@ -292,40 +292,40 @@ func (gl *gainLayer) Set(val float32) {
 func newStripLevels(i int, k *kind) levels {
 	var init int
 	var os int
-	if i < k.physIn {
+	if i < k.PhysIn {
 		init = i * 2
 		os = 2
 	} else {
-		init = (k.physIn * 2) + ((i - k.physIn) * 8)
+		init = (k.PhysIn * 2) + ((i - k.PhysIn) * 8)
 		os = 8
 	}
 	return levels{iRemote{fmt.Sprintf("strip[%d]", i), i}, k, init, os, "strip"}
 }
 
-// PreFader returns the level valuess for this strip, PREFADER mode
-func (l *levels) PreFader() []float32 {
+// PreFader returns the level values for this strip, PREFADER mode
+func (l *levels) PreFader() []float64 {
 	_levelCache.stripMode = 0
-	var levels []float32
+	var levels []float64
 	for i := l.init; i < l.init+l.offset; i++ {
 		levels = append(levels, convertLevel(_levelCache.stripLevels[i]))
 	}
 	return levels
 }
 
-// PreFader returns the level valuess for this strip, POSTFADER mode
-func (l *levels) PostFader() []float32 {
+// PostFader returns the level values for this strip, POSTFADER mode
+func (l *levels) PostFader() []float64 {
 	_levelCache.stripMode = 1
-	var levels []float32
+	var levels []float64
 	for i := l.init; i < l.init+l.offset; i++ {
 		levels = append(levels, convertLevel(_levelCache.stripLevels[i]))
 	}
 	return levels
 }
 
-// PreFader returns the level valuess for this strip, POSTMUTE mode
-func (l *levels) PostMute() []float32 {
+// PostMute returns the level values for this strip, POSTMUTE mode
+func (l *levels) PostMute() []float64 {
 	_levelCache.stripMode = 2
-	var levels []float32
+	var levels []float64
 	for i := l.init; i < l.init+l.offset; i++ {
 		levels = append(levels, convertLevel(_levelCache.stripLevels[i]))
 	}

tests/helper_test.go

@@ -1,26 +1,26 @@
 package voicemeeter_test
 
 import (
-	"os"
+	"log"
 	"testing"
-	"time"
 
 	"github.com/onyx-and-iris/voicemeeter-api-go"
 )
 
 var (
-	vmRem = voicemeeter.NewRemote("potato")
+	vm, err = voicemeeter.NewRemote("potato", 30)
 )
 
 func TestMain(m *testing.M) {
-	vmRem.Login()
-	code := m.Run()
-	vmRem.Logout()
-	os.Exit(code)
-}
-
-func sync() {
-	time.Sleep(30 * time.Millisecond)
-	for vmRem.Pdirty() || vmRem.Mdirty() {
+	if err != nil {
+		log.Fatal(err)
 	}
+
+	err = vm.Login()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	m.Run()
 }

tests/higher_test.go

@@ -8,206 +8,179 @@ import (
 
 func TestStrip0Mute(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[0].SetMute(true)
-	sync()
+	vm.Strip[0].SetMute(true)
 	t.Run("Should return true when SetMute(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Strip[0].GetMute())
+		assert.True(t, vm.Strip[0].GetMute())
 	})
 
-	vmRem.Strip[0].SetMute(false)
-	sync()
+	vm.Strip[0].SetMute(false)
 	t.Run("Should return false when SetMute(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Strip[0].GetMute())
+		assert.False(t, vm.Strip[0].GetMute())
 	})
 }
 
 func TestStrip3A1(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[3].SetA1(true)
-	sync()
+	vm.Strip[3].SetA1(true)
 	t.Run("Should return true when SetA1(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Strip[3].GetA1())
+		assert.True(t, vm.Strip[3].GetA1())
 	})
 
-	vmRem.Strip[3].SetA1(false)
-	sync()
+	vm.Strip[3].SetA1(false)
 	t.Run("Should return false when SetA1(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Strip[3].GetA1())
+		assert.False(t, vm.Strip[3].GetA1())
 	})
 }
 
 func TestStrip2Limit(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[2].SetLimit(-8)
-	sync()
+	vm.Strip[2].SetLimit(-8)
 	t.Run("Should return -8 when SetLimit(-8)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GetLimit(), -8)
+		assert.Equal(t, vm.Strip[2].GetLimit(), -8)
 	})
 
-	vmRem.Strip[2].SetLimit(-32)
-	sync()
+	vm.Strip[2].SetLimit(-32)
 	t.Run("Should return -32 when SetLimit(-8)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GetLimit(), -32)
+		assert.Equal(t, vm.Strip[2].GetLimit(), -32)
 	})
 
 }
 
 func TestStrip4Label(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[4].SetLabel("test0")
-	sync()
+	vm.Strip[4].SetLabel("test0")
 	t.Run("Should return test0 when SetLimit('test0')", func(t *testing.T) {
-		assert.Equal(t, "test0", vmRem.Strip[4].GetLabel())
+		assert.Equal(t, "test0", vm.Strip[4].GetLabel())
 	})
 
-	vmRem.Strip[4].SetLabel("test1")
-	sync()
+	vm.Strip[4].SetLabel("test1")
 	t.Run("Should return test1 when SetLimit('test1')", func(t *testing.T) {
-		assert.Equal(t, "test1", vmRem.Strip[4].GetLabel())
+		assert.Equal(t, "test1", vm.Strip[4].GetLabel())
 	})
 }
 
 func TestStrip5Gain(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[4].SetGain(-20.8)
-	sync()
+	vm.Strip[4].SetGain(-20.8)
 	t.Run("Should return -20.8 when SetGain(-20.8)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetGain(), -20.8)
+		assert.Equal(t, vm.Strip[4].GetGain(), -20.8)
 	})
 
-	vmRem.Strip[4].SetGain(-3.6)
-	sync()
+	vm.Strip[4].SetGain(-3.6)
 	t.Run("Should return -3.6 when SetGain(-3.6)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetGain(), -3.6)
+		assert.Equal(t, vm.Strip[4].GetGain(), -3.6)
 	})
 }
 
 func TestStrip3Comp(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[4].SetComp(8.1)
-	sync()
+	vm.Strip[4].SetComp(8.1)
 	t.Run("Should return 8.1 when SetGain(8.1)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetComp(), 8.1)
+		assert.Equal(t, vm.Strip[4].GetComp(), 8.1)
 	})
 
-	vmRem.Strip[4].SetComp(1.6)
-	sync()
+	vm.Strip[4].SetComp(1.6)
 	t.Run("Should return 1.6 when SetGain(1.6)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetComp(), 1.6)
+		assert.Equal(t, vm.Strip[4].GetComp(), 1.6)
 	})
 }
 
 func TestStrip5Mc(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[5].SetMc(true)
-	sync()
+	vm.Strip[5].SetMc(true)
 	t.Run("Should return true when SetMc(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Strip[5].GetMc())
+		assert.True(t, vm.Strip[5].GetMc())
 	})
 
-	vmRem.Strip[5].SetMc(false)
-	sync()
+	vm.Strip[5].SetMc(false)
 	t.Run("Should return false when SetMc(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Strip[5].GetMc())
+		assert.False(t, vm.Strip[5].GetMc())
 	})
 }
 
 func TestStrip2GainLayer3(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[2].GainLayer()[3].Set(-18.3)
-	sync()
+	vm.Strip[2].GainLayer()[3].Set(-18.3)
 	t.Run("Should return -18.3 when SetMc(true)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GainLayer()[3].Get(), -18.3)
+		assert.Equal(t, vm.Strip[2].GainLayer()[3].Get(), -18.3)
 	})
 
-	vmRem.Strip[2].GainLayer()[3].Set(-25.6)
-	sync()
+	vm.Strip[2].GainLayer()[3].Set(-25.6)
 	t.Run("Should return -25.6 when SetMc(true)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GainLayer()[3].Get(), -25.6)
+		assert.Equal(t, vm.Strip[2].GainLayer()[3].Get(), -25.6)
 	})
 }
 
 func TestBus3Eq(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Bus[3].SetEq(true)
-	sync()
+	vm.Bus[3].SetEq(true)
 	t.Run("Should return true when SetEq(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Bus[3].GetEq())
+		assert.True(t, vm.Bus[3].GetEq())
 	})
 
-	vmRem.Bus[3].SetEq(false)
-	sync()
+	vm.Bus[3].SetEq(false)
 	t.Run("Should return false when SetEq(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Bus[3].GetEq())
+		assert.False(t, vm.Bus[3].GetEq())
 	})
 }
 
 func TestBus4Label(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Bus[4].SetLabel("test0")
-	sync()
+	vm.Bus[4].SetLabel("test0")
 	t.Run("Should return test0 when SetEq('test0')", func(t *testing.T) {
-		assert.Equal(t, "test0", vmRem.Bus[4].GetLabel())
+		assert.Equal(t, "test0", vm.Bus[4].GetLabel())
 	})
 
-	vmRem.Bus[4].SetLabel("test1")
-	sync()
+	vm.Bus[4].SetLabel("test1")
 	t.Run("Should return test1 when SetEq('test1')", func(t *testing.T) {
-		assert.Equal(t, "test1", vmRem.Bus[4].GetLabel())
+		assert.Equal(t, "test1", vm.Bus[4].GetLabel())
 	})
 }
 
 func TestBus3ModeAmix(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Bus[3].Mode().SetAmix(true)
-	sync()
+	vm.Bus[3].Mode().SetAmix(true)
 	t.Run("Should return true when Mode().SetAmix(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Bus[3].Mode().GetAmix())
+		assert.True(t, vm.Bus[3].Mode().GetAmix())
 	})
 }
 
 func TestVbanInStream0On(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Vban.InStream[0].SetOn(true)
-	sync()
+	vm.Vban.InStream[0].SetOn(true)
 	t.Run("Should return true when SetOn(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Vban.InStream[0].GetOn())
+		assert.True(t, vm.Vban.InStream[0].GetOn())
 	})
 
-	vmRem.Vban.InStream[0].SetOn(false)
-	sync()
+	vm.Vban.InStream[0].SetOn(false)
 	t.Run("Should return false when SetOn(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Vban.InStream[0].GetOn())
+		assert.False(t, vm.Vban.InStream[0].GetOn())
 	})
 }
 
 func TestVbanOutStream6On(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Vban.OutStream[6].SetOn(true)
-	sync()
+	vm.Vban.OutStream[6].SetOn(true)
 	t.Run("Should return true when SetOn(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Vban.OutStream[6].GetOn())
+		assert.True(t, vm.Vban.OutStream[6].GetOn())
 	})
 
-	vmRem.Vban.OutStream[6].SetOn(false)
-	sync()
+	vm.Vban.OutStream[6].SetOn(false)
 	t.Run("Should return false when SetOn(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Vban.OutStream[6].GetOn())
+		assert.False(t, vm.Vban.OutStream[6].GetOn())
 	})
 }
 
 func TestVbanOutStream3Name(t *testing.T) {
 	t.Skip("skipping test")
-	vmRem.Vban.OutStream[3].SetName("test0")
-	sync()
+	vm.Vban.OutStream[3].SetName("test0")
 	t.Run("Should return test0 when SetName('test0')", func(t *testing.T) {
-		assert.Equal(t, "test0", vmRem.Vban.OutStream[3].GetName())
+		assert.Equal(t, "test0", vm.Vban.OutStream[3].GetName())
 	})
 
-	vmRem.Vban.OutStream[3].SetName("test1")
-	sync()
+	vm.Vban.OutStream[3].SetName("test1")
 	t.Run("Should return test1 when SetName('test1')", func(t *testing.T) {
-		assert.Equal(t, "test1", vmRem.Vban.OutStream[3].GetName())
+		assert.Equal(t, "test1", vm.Vban.OutStream[3].GetName())
 	})
 }
 
@@ -219,21 +192,19 @@ func TestVbanInStream4Bit(t *testing.T) {
 				t.Error("expected panic")
 			}
 		}()
-		vmRem.Vban.InStream[4].SetBit(16)
+		vm.Vban.InStream[4].SetBit(16)
 	})
 }
 
 func TestVbanOutStream4Bit(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Vban.OutStream[4].SetBit(16)
-	sync()
+	vm.Vban.OutStream[4].SetBit(16)
 	t.Run("Should return 16 when SetBit(16)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Vban.OutStream[4].GetBit(), 16)
+		assert.Equal(t, vm.Vban.OutStream[4].GetBit(), 16)
 	})
 
-	vmRem.Vban.OutStream[4].SetBit(24)
-	sync()
+	vm.Vban.OutStream[4].SetBit(24)
 	t.Run("Should return 24 when SetBit(24)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Vban.OutStream[4].GetBit(), 24)
+		assert.Equal(t, vm.Vban.OutStream[4].GetBit(), 24)
 	})
 }

util.go

@@ -13,7 +13,7 @@ func allTrue(s []bool, sz int) bool {
 }
 
 // update copies the contents of one float slice into another
-func update(s1 []float32, s2 []float32, sz int) {
+func update(s1 []float64, s2 []float64, sz int) {
 	for i := 0; i < sz; i++ {
 		s1[i] = s2[i]
 	}
@@ -26,10 +26,10 @@ func roundFloat(val float64, precision uint) float64 {
 }
 
 // convertLevel performs the necessary math for a channel level
-func convertLevel(i float32) float32 {
+func convertLevel(i float64) float64 {
 	if i > 0 {
 		val := 20 * math.Log10(float64(i))
-		return float32(roundFloat(float64(val), 1))
+		return float64(roundFloat(float64(val), 1))
 	}
 	return -200.0
 }

util_test.go

@@ -20,8 +20,8 @@ func TestAllTrue(t *testing.T) {
 
 func TestUpdate(t *testing.T) {
 	//t.Skip("skipping test")
-	s1 := []float32{3.6, 8.7, 1.8, 18.2}
-	s2 := make([]float32, len(s1))
+	s1 := []float64{3.6, 8.7, 1.8, 18.2}
+	s2 := make([]float64, len(s1))
 	update(s2, s1, len(s1))
 	t.Run("Should return true", func(t *testing.T) {
 		assert.Equal(t, s1, s2)
@@ -32,10 +32,10 @@ func TestConvertLevel(t *testing.T) {
 	//t.Skip("skipping test")
 	res := convertLevel(0.02)
 	t.Run("Should be equal", func(t *testing.T) {
-		assert.Equal(t, float32(-34), res)
+		assert.Equal(t, float64(-34), res)
 	})
 	res = convertLevel(-0.02)
 	t.Run("Should be equal", func(t *testing.T) {
-		assert.Equal(t, float32(-200), res)
+		assert.Equal(t, float64(-200), res)
 	})
 }

vban.go

@@ -169,12 +169,12 @@ type vban struct {
 }
 
 func newVban(k *kind) *vban {
-	_vbanIn := make([]iVban, k.vbanIn)
-	for i := 0; i < k.vbanIn; i++ {
+	_vbanIn := make([]iVban, k.VbanIn)
+	for i := 0; i < k.VbanIn; i++ {
 		_vbanIn[i] = newVbanInStream(i)
 	}
-	_vbanOut := make([]iVban, k.vbanOut)
-	for i := 0; i < k.vbanOut; i++ {
+	_vbanOut := make([]iVban, k.VbanOut)
+	for i := 0; i < k.VbanOut; i++ {
 		_vbanOut[i] = newVbanOutStream(i)
 	}
 	return &vban{