CheckVideoInfoType
| Microsoft DirectShow 9.0 |
CheckVideoInfoType
The CheckVideoInfoType function checks a media type that contains a VIDEOINFOHEADER format structure for certain common errors that can cause buffer overruns or integer overflows.
- Note This function does not guarantee that the media type is valid or that code using the structure is secure.
Syntax
HRESULT CheckVideoInfoType(
const AM_MEDIA_TYPE *
pmt
);
Parameters
pmt
Pointer to the AM_MEDIA_TYPE structure to validate.
Return Value
Returns one of the following HRESULT values.
| Value | Description |
| S_OK | Success |
| E_POINTER | NULL pointer value |
| VFW_E_TYPE_NOT_ACCEPTED | Invalid media type |
Remarks
This function calls ValidateBitmapInfoHeader to validate the BITMAPINFOHEADER structure in the media type. If the format type is not FORMAT_VideoInfo, the function returns VFW_E_TYPE_NOT_ACCEPTED.
Requirements
** Header:** Include checkbmi.h.
** Library:** None.
See Also