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();
       }
       }
   }

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).