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Processing the MM_WOM_DONE Message

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The following example shows how to process the MM_WOM_DONE message. This example assumes the application does not play multiple data blocks, so it can close the output device after playing a single data block.

// WndProc--Main window procedure. 
LRESULT FAR PASCAL WndProc(HWND hWnd, UINT msg, WPARAM wParam, 
    LPARAM lParam) 
{ 
switch (msg) 
{ 
    case MM_WOM_DONE: 
 
    // A waveform-audio data block has been played and 
    // can now be freed. 
    waveOutUnprepareHeader((HWAVEOUT) wParam, 
        (LPWAVEHDR) lParam, sizeof(WAVEHDR) ); 
    
    // Free hData memory. 
    
    waveOutClose((HWAVEOUT) wParam); 
    break; 
    } 
    return DefWindowProc(hWnd, msg, wParam, lParam); 
}