I am trying to use MS direct sound and am having endless problems.  I can't
figure out which files I need to include or how to get it to work.

I've been trying to work my way through some MSDN examples and the directx
help files.

I can create the IDirectSound interface, but when I try to create a sound
buffer for streaming, all I get DSERR_INVALIDPARAM as a return value.  I'm
using the example from the help files, so I can't figure out what the
problem is.

here'a the create sound buffer code:

AppCreateBasicBuffer(LPDIRECTSOUND lpDirectSound, LPDIRECTSOUNDBUFFER
*lplpDsb)
{
PCMWAVEFORMAT pcmwf;
    DSBUFFERDESC dsbdesc;
    HRESULT hr;
    // Set up wave format structure.
    memset(&pcmwf, 0, sizeof(PCMWAVEFORMAT));
    pcmwf.wf.wFormatTag = WAVE_FORMAT_PCM;
    pcmwf.wf.nChannels = 2;
    pcmwf.wf.nSamplesPerSec = 22050;
    pcmwf.wf.nBlockAlign = 4;
    pcmwf.wf.nAvgBytesPerSec = pcmwf.wf.nSamplesPerSec *
pcmwf.wf.nBlockAlign;

    pcmwf.wBitsPerSample = 16;
    // Set up DSBUFFERDESC structure.
    memset(&dsbdesc, 0, sizeof(DSBUFFERDESC)); // Zero it out.
    dsbdesc.dwSize = sizeof(DSBUFFERDESC);
    // Need default controls (pan, volume, frequency).
    dsbdesc.dwFlags = DSBCAPS_CTRLVOLUME;
    // 3-second buffer.
    dsbdesc.dwBufferBytes = 3 * pcmwf.wf.nAvgBytesPerSec;
    dsbdesc.lpwfxFormat = (LPWAVEFORMATEX)&pcmwf;
    // Create buffer.
    hr = lpDirectSound->CreateSoundBuffer(NULL/*&dsbdesc*/, lplpDsb, NULL);
    if(DS_OK == hr) {
        // Succeeded. Valid interface is in *lplpDsb.
        return true;
    } else {
        // Failed.
        *lplpDsb = NULL;
        return false;
    }

Any help or guidance would be greatly appreciated.

Thanks,

Paul Irwin

www.internations.net/fi/palace/
Have 1 little direct sound example for c++ builder 3...
Dunno if it helps you, but it helped me when I had some
probs making Dsound working...