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CBaseAllocator::Commit

  • Articolo
 
Microsoft DirectShow 9.0

CBaseAllocator::Commit

The Commit method allocates the memory for the buffers. This method implements the IMemAllocator::Commit method.

Syntax

  HRESULT Commit(void);

Return Value

Returns an HRESULT value. Possible values include those in the following list.

Value Description
S_OK Success.
VFW_E_SIZENOTSET 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 cancelled.

You must call this method before calling the CBaseAllocator::GetBuffer method.

Requirements

**  Header:** Declared in Amfilter.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also