wpQueryBitmapData - Example Code

This example shows how the WPBitmap class returns the data for a bitmap object. The wpReadImageFile method reads the bitmap data from the data file and sets the instance variables _pBitmapData to point to the bitmap data and _ulBitmapDataSize to the size of the bitmap data.

SOM_Scope PBYTE bmp_wpQueryBitmapData(WPBitmap *somSelf,
                                      ULONG *pulSize)
{
    WPBitmapData *somThis = WPBitmapGetData(somSelf);

    /* Read the data from the bitmap file   */
    _wpReadImageFile(somSelf);

    /* Pass the data back to the caller  */
    if(pulSize)
    {
       *pulSize = _ulBitmapDataSize;
    }

    return _pBitmapData;
}