Preparing to Draw Data

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[The feature associated with this page, Video Compression Manager, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]

The following example shows the initialization sequence that instructs the decompressor to draw full-screen. It uses the ICDrawBegin and ICDrawEnd macros.

// Assume lpbiIn has the input format, dwRate has the data rate. 

if (ICDrawBegin(hIC, ICDRAW_QUERY | ICDRAW_FULLSCREEN, NULL, NULL, 
    NULL, 0, 0, 0, 0, lpbiIn, 0, 0, 0, 0, dwRate, 
    dwScale) == ICERR_OK) 
{ 
    // Decompressor supports this drawing so set up to draw. 
    ICDrawBegin(hIC, ICDRAW_FULLSCREEN, hPal, NULL, NULL, 0, 0, 0, 
        0, lpbiIn, 0, 0, lbpi->biWidth, lpbi->biHeight, dwRate, 
        dwScale); 
    . 
    . // Start decompressing and drawing frames. 
    . 
 
    // Drawing done. Terminate procedure. 
    ICDrawEnd(hIC); 
} 
else 
{ 
    
    // Use another renderer to draw data on the screen; 
    // ICDraw does not support the format. 
}