Select a Section of the Displayed Image

To select a section of the image, use a Rubberband or a Sprite:

Select with Rubberband

ImagXpress® enables the user to select a rectangular section of the image being viewed. This section, referred to as a Rubberband, can then be used to specify a region to process.

To use a rubberband:

Enable the rubberband capability by setting ImageXView.Rubberband.Enabled to True.
Define and modify a rubberband area, by calling ImageXView.Rubberband methods: Start, Stop, Update, and Clear.
Copy the content framed by the rubberband to an ImageX object using the Rubberband Copy method.

Select with Sprite

The ImageXView class provides capability to create and use a sprite. A sprite is created by copying a part of the displayed image into a transparent window. This window can be moved or pasted within the image view. To create and use a sprite:

Define a part of the displayed image to copy. (This can be done either by defining a Rubberband, Region, Area, or a graphics path.)
Create the sprite, by calling the Sprite Create method
Move the sprite, by calling the Sprite Move method
To permanently paste the sprite to the ImageX object, call the Sprite Paste method.

Even if the viewer is assigned a different image to display, the sprite remains in effect and can be moved or pasted in the new image being viewed. Therefore, sprites can be used to merge images.

Delete the sprite and free up its resources, by calling the Sprite Delete method.

Deleting the sprite does not result in any changes to the image being viewed.