ImageViewerRubberBandInteractiveMode Class

ImageViewerRubberBandInteractiveMode derives from ImageViewerInteractiveMode and subscribes to the following events of the InteractiveService:

• InteractiveService.DragStarted

• InteractiveService.DragDelta

• InteractiveService.DragCompleted

ImageViewerRubberBandInteractiveMode works as follows:

1. When InteractiveService.DragStarted is received, a temporary canvas element is created on top of the viewer, this canvas is used to draw the rubber band rectangle. The following properties are used to customize the appearance of this canvas: BorderColor, BorderThickness and the event RubberBandStarted is fired.

2. When InteractiveService.DragDelta is received, the temporary canvas is moved to the current position and the event RubberBandDelta is fired.

3. When InteractiveService.DragCompleted is received, the temporary canvas is removed and the event RubberBandCompleted is fired.

ImageViewerRubberBandInteractiveMode interactive mode does not perform any action on the viewer (besides drawing, moving and then removing the rectangle). It is up to the user to implement any custom operation required. For example, to select a region of interest on the image. ImageViewerZoomToInteractiveMode derives from ImageViewerRubberBandInteractiveMode and calls ImageViewer.ZoomToRect upon the receiving of RubberBandCompleted event.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ImageViewerRubberBandInteractiveMode Members
Leadtools.Controls Namespace