|Microsoft DirectX 9.0|
Note The IAMDevMemoryControl interface is deprecated.
Checks if the memory supported by the allocator requires the use of the IAMDevMemoryControl::WriteSync method.
Returns S_OK if the method is required, or S_FALSE otherwise.
Not all on-board memory needs to have WriteSync called to synchronize with the completed write. This method is used to check if the call is necessary.