Microsoft DirectX 9.0


The SynchronousBlockOutputPin method blocks the pin; does not return until the pin is blocked.


HRESULT SynchronousBlockOutputPin(void);

Return Value

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

Value Description
S_OK Success.
VFW_E_PIN_ALREADY_BLOCKED Pin is already blocked on another thread.
VFW_E_PIN_ALREADY_BLOCKED_ON_THIS_THREAD Pin is already blocked on the calling thread.


Do not call this method from the streaming thread.

See Also