private void setupBuffer()
{
pWaveHdr1 = new WAVEHDR();
pWaveHdr1.lpData = bufferPin.AddrOfPinnedObject();
pWaveHdr1.dwBufferLength = INP_BUFFER_SIZE;
pWaveHdr1.dwBytesRecorded = 0;
pWaveHdr1.dwUser = IntPtr.Zero;
pWaveHdr1.dwFlags = 0;
pWaveHdr1.dwLoops = 1;
pWaveHdr1.lpNext = IntPtr.Zero;
pWaveHdr1.reserved = (System.IntPtr)null;
int i = waveInPrepareHeader(handle, ref pWaveHdr1, Convert.ToUInt32(Marshal.SizeOf(pWaveHdr1)));
if (i != 0)
{
this.Text = "Error: waveInPrepare " + i.ToString();
return;
}
i = waveInAddBuffer(handle, ref pWaveHdr1, Convert.ToUInt32(Marshal.SizeOf(pWaveHdr1)));
if (i != 0)
{
this.Text = "Error: waveInAddrBuffer";
return;
}
}
public static extern int waveInUnprepareHeader(IntPtr hwi, ref WAVEHDR pwh, uint cbwh);
public static extern int waveInAddBuffer(IntPtr hWaveIn, ref WAVEHDR lpWaveHdr, uint cWaveHdrSize);
public static extern int waveInPrepareHeader(IntPtr hWaveIn, ref WAVEHDR lpWaveHdr, uint Size);
public void callbackWaveIn(IntPtr deviceHandle, uint message, IntPtr instance, ref WAVEHDR wavehdr, IntPtr reserved2)
{
int i = 0;
uint ii = 0;
if (message == 0x3BF)
{//WIM_CLOSE
// i = waveInUnprepareHeader(deviceHandle, ref wavehdr, Convert.ToUInt32(Marshal.SizeOf(wavehdr)));
// if (i != 0)
// {
// this.Text = "Error: waveInUnprepareHeader " + i;
// }
}
else
if (message == 958)
{//WIM_OPEN
return;
}
else
if (message == 0x3C0) //WIM_DATA
//if (this.InvokeRequired)
// this.Invoke(waveIn, deviceHandle, message, instance, wavehdr, reserved2);
//else
{
{
if (wavehdr.dwBytesRecorded > 0)
{
byte[] temp = new byte[sampleLength + wavehdr.dwBytesRecorded];
Array.Copy(samples, temp, sampleLength);
Array.Copy(buffer, 0, temp, sampleLength, wavehdr.dwBytesRecorded);
sampleLength += wavehdr.dwBytesRecorded;
samples = temp;
// foreach (byte buf in buffer)
// {
// form.addData(buffer);
// do something cool with your byte stream
// }
i = waveInUnprepareHeader(deviceHandle, ref wavehdr, Convert.ToUInt32(Marshal.SizeOf(wavehdr)));
if (i != 0)
{
this.Text = "Error: waveInUnprepareHeader " + i;
}
setupBuffer();
}
if (endRecording)
{
return;
}
}
}
else //SHOULD NOT GET HERE
{
endRecording = true;
}
}
