Microsoft DirectX 9.0


The CheckHeaderValidity method validates a BITMAPINFOHEADER structure. This method is useful only for uncompressed RGB types, not for compressed types or YUV types.


BOOL CheckHeaderValidity(
    const VIDEOINFO *pInput



Pointer to a VIDEOINFO structure containing the BITMAPINFOHEADER structure.

Return Value

Returns TRUE if the BITMAPINFOHEADER is valid, or FALSE otherwise.


This method checks that the image dimensions are non-negative; the compression type is BI_RGB or BI_BITFIELDS; the color depth and color masks are valid; the biPlanes member equals one; and the biSize and biSizeImage members are correct. It also checks for common errors in the palette entries, if any.

See Also