ImageGear for C and C++ on Windows v20.0 - Updated
IG_GUI_thumbnail_update
API Reference Guide > Core Component API Reference > Core Component Functions Reference > GUI Functions > GUI Thumbnail Functions > IG_GUI_thumbnail_update

This function may be called to update (repaint) the GUI thumbnail window if, for example, an image that is being displayed in the window has changed in memory.

Declaration:

 
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AT_ERRCOUNT ACCUAPI IG_GUI_thumbnail_update (
        HWND hWndThumbnail
);

Arguments:

Name Type Description
hWndThumbnail HWND Windows handle of a Thumbnail window.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++.

Sample:

Display

Example:

 
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HWND      hWndThumb;     /* Handle of Thumbnail window */
IG_GUI_thumbnail_update ( hWndThumb );
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