LPDDHAL_WAITFORVERTICALBLANK (Compact 2013)
3/26/2014
This callback function helps the application synchronize itself with the vertical blanking interval (VBI).
Syntax
typedef DWORD (* LPDDHAL_WAITFORVERTICALBLANK)(
LPDDHAL_WAITFORVERTICALBLANKDATA lpwfvbd
);
Parameters
- lpwfvbd
[in, out] Pointer to a DDHAL_WAITFORVERTICALBLANKDATA structure that contains the vertical blank information.
Return Value
Returns one of the following values:
- DDHAL_DRIVER_HANDLED
The request was handled although a specific action may not have been taken.
- DDHAL_DRIVER_NOTHANDLED
The request was not handled or processed in any way.
Note
For a complete list of the DDHAL callback return values, see DDHAL Callback Return Values.
Remarks
An example implementation of this callback function, WaitForVerticalBlank32, can be found in the IGS sample driver source code.
Requirements
Header |
ddrawi.h |
Library |
Developer Implemented |
See Also
Reference
DirectDraw Display Driver Callback Functions
DDHAL_WAITFORVERTICALBLANKDATA
DDHAL Callback Return Values