GetPanZoomEffectStartEndRects
Declaration
procedure GetPanZoomEffectStartEndRects(IEClientWidth, IEClientHeight: Integer;BitmapWidth, BitmapHeight: Integer;
PanZoomEffect: TIEPanZoomType;
MaxZoom: Integer;
out StartRect: TRect;
out EndRect: TRect;
MaintainAspectRatio: Boolean = False);
Description
Calculate the starting and ending positions for a Pan/Zoom effect.| Parameter | Description |
|---|---|
| IEClientWidth, IEClientHeight | Size of of the display window, e.g. a TImageEnView |
| BitmapWidth, BitmapHeight | Dimensions of the bitmap |
| PanZoomEffect | Pan/Zoom effect to use |
| MaxZoom | For zoom effects, how much should we zoom in/out, e.g. 20 for 20% |
| StartRect | Will be filled with the first display position |
| EndRect | Will be filled with the last display position |
| MaintainAspectRatio | Set to true to ensure the image always maintains the image's original ratio when stretching |
Demos
 | Demos\Display\PanZoomEffects\PanZoom.dpr |
| | Demos\ImageEditing\EveryMethod\EveryMethod.dpr |