| Microsoft DirectX 8.1 (C++) |
Compares a video type to determine if it is compatible with the current display mode.
Syntax
HRESULT CheckVideoType(
const VIDEOINFO *pInput
);
Parameters
pInput
Pointer to the VIDEOINFO structure to validate.
Return Value
Returns NOERROR if successful or E_INVALIDARG if unsuccessful.
Remarks
Many video rendering filters want a function to determine if proposed formats are okay. This member function checks the VIDEOINFO structure passed as a media type and returns NOERROR if the media type is valid; otherwise, it returns E_INVALIDARG434. Note, however, that only formats that can be easily displayed on the current display device are accepted; so, for example, a 16-bit device will not accept 24-bit images. Because most displays draw 8-bit palettized images efficiently, this format is always accepted unless the display is 16-color VGA.
See Also