InvalidateItem Method

 function Leadtools.Controls.ImageViewer.invalidateItem( 
   item 
)

Parameters

Parameter	Type	Description
item	ImageViewerItem	The item to invalidate. This parameter cannot be null.

Calling this method will cause the viewer to re-render the item. This is performed internally by passing the value obtained the value of GetItemViewBounds for the item and if it is not empty, passing to Invalidate.

For more information, refer to Image Viewer Rendering.

Reference

ImageViewer Object
ImageViewer Members