IVideoWindow::get_MessageDrain
| Microsoft DirectShow 9.0 |
IVideoWindow::get_MessageDrain
The get_MessageDrain method retrieves the window that receives mouse and keyboard messages from the video window, if any.
Syntax
HRESULT get_MessageDrain(
OAHWND *Drain
);
Parameters
Drain
[in] Pointer to a variable that receives a handle to the window, as an OAHWND type. If no message drain was set, this parameter receives the value NULL.
Return Values
Possible return values include the following:
| Value | Description |
| E_POINTER | NULL pointer. |
| S_OK | Success. |
| VFW_E_NOT_CONNECTED | The video renderer filter is not connected. |
Requirements
Header: Declared in Control.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also