|Microsoft DirectX 9.0|
The SetWaiting method increments the count of waiting threads.
This method increments the CBaseAllocator::m_lWaiting member variable. If a thread is blocked in the CBaseAllocator::GetBuffer method, the allocator calls SetWaiting and then waits for the CBaseAllocator::m_hSem semaphore to be signalled. The CBaseAllocator::ReleaseBuffer method signals the semaphore and sets m_lWaiting back to zero.