add device enumeration

bindings, base functions, and Remote methods implemented

initial manual tests for potato pass

lib/Voicemeeter.psm1

@@ -75,6 +75,22 @@ class Remote {
     [void] PDirty() { P_Dirty }
 
     [void] MDirty() { M_Dirty }
+
+    [int] GetOutputCount() {
+        return Device_Count -IS_OUT $true
+    }
+
+    [int] GetInputCount() {
+        return Device_Count
+    }
+
+    [PSObject] GetOutputDevice([int]$index) {
+        return Device_Desc -INDEX $index -IS_OUT $true
+    }
+
+    [PSObject] GetInputDevice([int]$index) {
+        return Device_Desc -INDEX $index
+    }
 }
 
 class RemoteBasic : Remote {

lib/base.ps1

@@ -225,4 +225,59 @@ function Get_Level {
         throw [CAPIError]::new($retval, 'VBVMR_GetLevel') 
     }
     [float]$ptr
+}
+
+function Device_Count {
+    param(
+        [bool]$IS_OUT = $false
+    )
+    if ($IS_OUT) {
+        $retval = [int][Voicemeeter.Remote]::VBVMR_Output_GetDeviceNumber()
+        if ($retval -lt 0) { 
+            throw [CAPIError]::new($retval, 'VBVMR_Output_GetDeviceNumber') 
+        }
+    }
+    else {
+        $retval = [int][Voicemeeter.Remote]::VBVMR_Input_GetDeviceNumber()
+        if ($retval -lt 0) { 
+            throw [CAPIError]::new($retval, 'VBVMR_Input_GetDeviceNumber') 
+        }
+    }
+    $retval
+}
+
+function Device_Desc {
+    param(
+        [int]$INDEX, [bool]$IS_OUT = $false
+    )
+    $driver = 0
+    $name = [System.Byte[]]::new(512)
+    $hardwareid = [System.Byte[]]::new(512)
+
+    if ($IS_OUT) {
+        $retval = [int][Voicemeeter.Remote]::VBVMR_Output_GetDeviceDescA($INDEX, [ref]$driver, $name, $hardwareid)
+        if ($retval -notin @(0)) { 
+            throw [CAPIError]::new($retval, 'VBVMR_Output_GetDeviceDescA') 
+        }
+    }
+    else {
+        $retval = [int][Voicemeeter.Remote]::VBVMR_Input_GetDeviceDescA($INDEX, [ref]$driver, $name, $hardwareid)
+        if ($retval -notin @(0)) { 
+            throw [CAPIError]::new($retval, 'VBVMR_Input_GetDeviceDescA') 
+        }
+    }
+
+    $drivers = @{
+        1 = 'MME'
+        3 = 'WDM'
+        4 = 'KS'
+        5 = 'ASIO'
+    }
+
+    [PSCustomObject]@{
+        Driver     = $drivers[$driver]
+        Name       = [System.Text.Encoding]::ASCII.GetString($name).Trim([char]0)
+        HardwareID = [System.Text.Encoding]::ASCII.GetString($hardwareid).Trim([char]0)
+        IsOutput   = $IS_OUT
+    }
 }

lib/binding.ps1

@@ -43,6 +43,15 @@ function Setup_DLL {
 
     [DllImport(@"$dll")]
     public static extern int VBVMR_GetLevel(Int64 mode, Int64 index, ref float ptr);
+
+    [DllImport(@"$dll")]
+    public static extern int VBVMR_Output_GetDeviceNumber();
+    [DllImport(@"$dll")]
+    public static extern int VBVMR_Input_GetDeviceNumber();
+    [DllImport(@"$dll")]
+    public static extern int VBVMR_Output_GetDeviceDescA(Int64 index, ref int type, byte[] name, byte[] hardwareid);
+    [DllImport(@"$dll")]
+    public static extern int VBVMR_Input_GetDeviceDescA(Int64 index, ref int type, byte[] name, byte[] hardwareid);
 "@
 
     Add-Type -MemberDefinition $Signature -Name Remote -Namespace Voicemeeter -PassThru | Out-Null