invalidate Method

Summary

Re-renders the spy glass.

Syntax
TypeScript
JavaScript
ImageViewerSpyGlassInteractiveMode.prototype.invalidate = function() 
invalidate(): void; 
Remarks

The mode will automatically re-renders the spy glass when the user move the mouse or through touch. When using an external canvas for rendering, it is sometimes desirable to re-render the spy glass based on an external event.

Example

For an example, refer to RedirectCanvas.

Requirements

Target Platforms

Help Version 22.0.2021.9.24
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Leadtools.Controls Assembly
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© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.