invalidate Method

Summary

Re-renders the spy glass.

Syntax

JavaScript Syntax
ImageViewerSpyGlassInteractiveMode.prototype.invalidate = function() 
TypeScript Syntax
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 19.0.2017.10.18
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