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4/8/2010

Retrieves a pointer to the filter-critical section.

Syntax

CCritSec* pStateLock(void);

Parameters

None.

Return Value

Returns the critical section.

Remarks

Locking consists of holding the filter-critical section by calling the pStateLockmember function and using the returned object to serialize access to functions.

Typically, this lock can be held by a function when the worker thread might want to hold it. Therefore, to access a shared state from the worker thread, add another critical-section object.

The exception occurs during the processing loop of the thread when it is safe to retrieve the filter-critical section from within CSourceStream::FillBuffer.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later