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- Description
The TDx_DrawSurface::Restore method will restore a lost memory surface by reallocating and reattaching the memory.
Allocated surface memory will be restored, but it is the responsibility of the application to restore the contents of the surface.
Lost surfaces may be caused by display card mode changes or another application acquiring access and freeing all the display card surface memory.
All associated implicitly created surfaces will be restored in a single call, while surfaces that have been explicitly attached will require individual restoration.
Attempting to directly restore an implicitly created surface will result in an error.
If the method call fails, the OnError event will be triggered with one of the following values:
DDERR_GENERIC
DDERR_IMPLICITLYCREATED
DDERR_INCOMPATIBLEPRIMARY
DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS
DDERR_NOEXCLUSIVEMODE
DDERR_OUTOFMEMORY
DDERR_UNSUPPORTED
DDERR_WRONGMODE
- See Also
- Top
TDx_Draw_Library v2.00 Component Reference
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[ TDx_DrawSurface::Restore() ] [ next: SaveToFile() ] [ prev: ReleaseDC() ] public:
virtual bool __fastcall Restore();
TDX_DRAWSURFACE::RESTORE()
[ component method ]
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