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waveOutOpen (coredll)
 

coredll is for smart devices, not desktop Windows. Therefore, this information only applies to code using the .NET Compact Framework. To see if information for waveOutOpen in other DLLs exists, click on Find References to the right.

.
Summary
TODO - a short description

C# Signature:

[DllImport ("coredll.dll", EntryPoint="waveOutOpen", SetLastError=true)]
public static extern int waveOutOpen(out IntPtr t, int id, WaveFormatEx pwfx, IntPtr dwCallback, int dwInstance, int fdwOpen);

VB Signature:

(TODO) As TODO

User-Defined Types:

None.

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

Taken from openNetCF in OpenNETCF.Win32.Wave

Tips & Tricks:

Please add some!

Sample Code:

using System;

using System.Data;

using System.Runtime.InteropServices;

namespace waveoutopen {

    class Tester
    {
        static void Main(string[] args)
        {
            Tester t = new Tester();
            t.Run();
        }
        public void Run()
        {
            WAVEFORMATEX testFormat = new WAVEFORMATEX();    
            testFormat.wFormatTag = 1;
            testFormat.wBitsPerSample = 16;   // 8,16
            testFormat.nChannels = 2;
            testFormat.nSamplesPerSec = 44100;
            testFormat.nBlockAlign = (ushort)(testFormat.nChannels *
                (testFormat.wBitsPerSample / 8));
            testFormat.nAvgBytesPerSec = (testFormat.nSamplesPerSec *
                testFormat.nBlockAlign);
            testFormat.cbSize = 0;

            IntPtr m_hwi = IntPtr.Zero;
            IntPtr hwnd = IntPtr.Zero;

            MMSYSERR result = waveOutOpen(ref m_hwi, WAVE_MAPPER,
                ref testFormat, 0, 0, 0);

            Console.WriteLine("and the result of open is {0}",result.ToString());
        }
        private const int MMSYSERR_BASE = 0;
        public const uint WAVE_MAPPER = unchecked((uint)(-1));
        public enum MMSYSERR : int
        {
            NOERROR = 0,
            ERROR = (MMSYSERR_BASE + 1),
            BADDEVICEID = (MMSYSERR_BASE + 2),
            NOTENABLED = (MMSYSERR_BASE + 3),
            ALLOCATED = (MMSYSERR_BASE + 4),
            INVALHANDLE = (MMSYSERR_BASE + 5),
            NODRIVER = (MMSYSERR_BASE + 6),
            NOMEM = (MMSYSERR_BASE + 7),
            NOTSUPPORTED = (MMSYSERR_BASE + 8),
            BADERRNUM = (MMSYSERR_BASE + 9),
            INVALFLAG = (MMSYSERR_BASE + 10),
            INVALPARAM = (MMSYSERR_BASE + 11),
            HANDLEBUSY = (MMSYSERR_BASE + 12),
            INVALIDALIAS = (MMSYSERR_BASE + 13),
            BADDB = (MMSYSERR_BASE + 14),
            KEYNOTFOUND = (MMSYSERR_BASE + 15),
            READERROR = (MMSYSERR_BASE + 16),
            WRITEERROR = (MMSYSERR_BASE + 17),
            DELETEERROR = (MMSYSERR_BASE + 18),
            VALNOTFOUND = (MMSYSERR_BASE + 19),
            NODRIVERCB = (MMSYSERR_BASE + 20),
            LASTERROR = (MMSYSERR_BASE + 20),
            BADFORMAT = (MMSYSERR_BASE + 32)
        }
        [DllImport ("coredll.dll")]
        private static extern MMSYSERR waveOutOpen(
            ref IntPtr phwo,
            uint uDeviceID,
            ref WAVEFORMATEX pwfx,
            uint dwCallback,
            uint dwInstance,
            uint fdwOpen
            );
        [StructLayout(LayoutKind.Sequential)]
        public unsafe struct WAVEFORMATEX
        {      
            public ushort wFormatTag;
            public ushort nChannels;
            public uint nSamplesPerSec;
            public uint nAvgBytesPerSec;
            public ushort nBlockAlign;
            public ushort wBitsPerSample;
            public ushort cbSize;          
        }
    }

}

Documentation
waveOutOpen on MSDN

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