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This function is used by the GDI to notify a driver that the surface created by the DrvEnableSurfacefunction for the current device is no longer needed.
VOID DrvDisableSurface( IN DHPDEV dhpdev );
Parameters
- dhpdev
- Handle to the
PDEVstructure that describes the physical device whose
surface is to be released.
Remarks
The driver should free any memory and resources used by the surface associated with PDEVas soon as the physical device is disabled.
If the driver has been disabled by a call to the DrvAssertModefunction, the driver cannot access the hardware during a call to the DrvDisablePDEVfunction because another active PDEVmight be in use. Any necessary hardware changes should have been performed during the call to DrvAssertMode. A driver should keep track of whether or not it has been disabled by DrvAssertModeso that it can perform proper cleanup operations in DrvDisablePDEV.
If the physical device has an enabled surface, the GDI calls this function before calling DrvDisablePDEV.
This function is required for graphics drivers.
Requirements
Runs on Versions Defined in Include Link to Windows CE OS 1.0 and later Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
See Also
Last updated on Tuesday, July 13, 2004