Pointer Validation Macros (Compact 2013)

3/26/2014

DirectShow provides macros to make pointer usage more robust. These include

a simple CheckPointer macro (which tests if a given pointer is NULL). These also include a number of ValidateXxxPtr macros, which ensure a given pointer actually refers to the correct kind of memory, although possibly with a significant performance hit for each test.

Programming element	Description
CheckPointer	Checks whether a given pointer is NULL.
ValidateReadPtr	Validates a read pointer.
ValidateReadWritePtr	Validates a read/write pointer.
ValidateStringPtr	Validates a string pointer.
ValidateStringPtrA	Validates an ANSI string pointer.
ValidateStringPtrW	Validates a wide (Unicode) string pointer.
ValidateWritePtr	Validates a write pointer.

See Also

Reference

DirectShow Debugging Macros