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Critical Section Debugging Functions

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

These functions help to debug critical sections in your code, which can make it easier to find the cause of a deadlock. These functions use the CCritSec helper class.

Function Description
CritCheckIn Returns TRUE if the current thread owns the specified critical section.
CritCheckOut Returns FALSE if the current thread owns the specified critical section.
DbgLockTrace Enables or disables debug logging for a given critical section.

 

Debugging Utilities