ValidateBitmapInfoHeader
| Microsoft DirectShow 9.0 |
ValidateBitmapInfoHeader
The ValidateBitmapInfoHeader function checks a BITMAPINFOHEADER structure for certain common errors that can cause buffer overruns or integer overflows.
- Note This function does not guarantee that the BITMAPINFOHEADER structure is valid or that code using the structure is secure.
Syntax
inline BOOL ValidateBitmapInfoHeader(
const BITMAPINFOHEADER *pbmi,
DWORD cbSize
);
Parameters
pbmi
Pointer to the BITMAPINFOHEADER structure to validate.
cbSize
Size of the memory block that holds the structure, in bytes.
Return Value
Returns a Boolean value. If the value is FALSE, the BITMAPINFOHEADER structure is not valid.
Remarks
This function guards against the following errors:
- Arithmetic overflow in the structure size or an invalid structure size.
- Invalid value for the biClrUsed member.
- Arithmetic overflow in the image size (biSizeImage).
- Invalid values for the image size (biSizeImage) for RGB formats.
The function does not check whether the structure describes a valid video format.
Requirements
Header: Include checkbmi.h.
Library: None.
See Also