CBaseAllocator.Commit method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
The Commit method allocates the memory for the buffers. This method implements the IMemAllocator::Commit method.
Syntax
HRESULT Commit();
Parameters
This method has no parameters.
Return value
Returns an HRESULT value. Possible values include those in the following list.
| Return code | Description |
|---|---|
|
Success. |
|
Buffer requirements were not specified. |
Remarks
Before calling this method, call the CBaseAllocator::SetProperties method to specify the buffer requirements.
This method calls the virtual method CBaseAllocator::Alloc to allocate the memory for the buffers. Derived classes can override Alloc. If a decommit operation is pending, it is canceled.
You must call this method before calling the CBaseAllocator::GetBuffer method.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also
Feedback
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback.
Submit and view feedback for