constructor Create(Owner: TCustomBitmap32; IsTemporary: Boolean = True; const MapFileName: string = ''); virtual;
Creates and initializes an instance of TGDIMMFBackend.
If Owner is specified the new back-end instance is automatically assigned to the TCustomBitmap32 instance. The existing back-end of the bitmap instance will be replaced and surface data is transfered to the new back-end instance via the Assign method.
IsTemporary defines whether the allocated file should only be used for the life-cycle of the surface.
MapFileName defines the filename of the file that should created or re-used as memory-mapped file. Passing an empty string as MapFileName will result in using a part of the swap file for the surface.
Setting IsTemporary to false while defining a MapFileName will result in a permanent file being created that can be re-used.
For an usage example of the constructor please refer to the additional topic Back-ends in this documentation.
Back-Ends, TBackend.Assign, TCustomBitmap32, TGDIMMFBackend
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