| Microsoft DirectX 9.0 |
The SetProperties method specifies the number of buffers to allocate and the size of each buffer.
Syntax
HRESULT SetProperties(
ALLOCATOR_PROPERTIES *pRequest,
ALLOCATOR_PROPERTIES *pActual
);
Parameters
pRequest
Pointer to an ALLOCATOR_PROPERTIES structure that contains the buffer requirements.
pActual
Pointer to an ALLOCATOR_PROPERTIES structure that receives the actual buffer properties.
Return Value
Returns one of the HRESULT values shown in the following table.
| Value | Description |
| S_OK | Success. |
| E_POINTER | NULL pointer argument. |
| VFW_E_ALREADY_COMMITTED | Cannot change allocated memory while the filter is active. |
| VFW_E_BADALIGN | An invalid alignment was specified. |
| VFW_E_BUFFERS_OUTSTANDING | One or more buffers are still active. |
Remarks
This method overrides the CBaseAllocator::SetProperties method.
The buffer alignment, specified by the cbAlign member of the ALLOCATOR_PROPERTIES structure, must be an even power of two.
See Also