IDirectDraw::TestCooperativeLevel (Compact 2013)
3/26/2014
This method reports the current cooperative-level status of the DirectDraw device for a windowed or full-screen application.
Syntax
HRESULT TestCooperativeLevel(void);
Parameters
None.
Return Value
If the method succeeds, the return value is DD_OK, indicating that the calling application can continue executing.
If the method fails, the return value may be one of the following error values:
DDERR_INVALIDOBJECT |
DDERR_EXCLUSIVEMODEALREADYSET |
DDERR_WRONGMODE |
For more information on these error codes see DirectDraw Return Values.
Remarks
This method is particularly useful to applications that use the WM_ACTIVATEand WM_DISPLAYCHANGE system messages as a notification to restore surfaces or re-create DirectDraw objects.
The DD_OK return value always indicates that the application can continue execution, but the failure codes are interpreted differently depending on the cooperative-level that the application uses.
Requirements
Header |
ddraw.h |
Library |
ddraw.lib |
See Also
Reference
IDirectDraw
DirectDraw Reference
DirectDraw Interfaces