@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The mixerGetDevCaps function queries a specified mixer device to determine its capabilities. !!!!C# Signature: [DllImport("winmm.dll", EntryPoint="mixerGetDevCaps", SetLastError=true)] private static extern uint MixerGetDevCaps(int mixerId, ref MixerCaps mixerCaps, int mixerCapsSize); !!!!VB Signature: <DllImport("winmm.dll", EntryPoint:="mixerGetDevCaps", SetLastError:=True)> _ Private Shared Function MixerGetDevCaps(ByVal mixerId As Integer, ByRef mixerCaps As MixerCaps, ByVal mixerCapsSize As Integer) As UInteger End Function !!!!User-Defined Types: MixerCaps is in Structures.MIXERCAPS !!!!Alternative Managed API: Do you know one? Please contribute it! !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: using System; using System.Runtime.InteropServices; namespace ConsoleApplication3 { class Program { [DllImport("winmm.dll", EntryPoint = "mixerGetNumDevs")] private static extern uint MixerGetNumDevs(); [DllImport("winmm.dll", EntryPoint = "mixerGetDevCaps", SetLastError = true)] private static extern uint MixerGetDevCaps(int mixerId, ref MixerCaps mixerCaps, int mixerCapsSize); [StructLayout(LayoutKind.Sequential)] struct MixerCaps { public ushort ManufacturerID; public ushort ProductId; public int Version; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public String ProductName; public uint Support; public uint Destinations; public override String ToString() { return String.Format("Manufacturer ID: {0}, Product ID: {1}, Driver Version: {2}, Product Name: \"{3}\", Support: {4}, Destinations: {5}", ManufacturerID, ProductId, Version, ProductName, Support, Destinations); } } static void Main(string[] args) { uint numDevs = MixerGetNumDevs(); for (int mixerId = 0; mixerId < numDevs; mixerId++) { MixerCaps caps = new MixerCaps(); uint result = MixerGetDevCaps(mixerId, ref caps, Marshal.SizeOf(caps)); Console.WriteLine(caps.ToString()); } Console.ReadKey(); } } } Documentation: mixerGetDevCaps@msdn on MSDN
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