ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Functions Reference / GUI Functions / GUI Thumbnail Functions / IG_GUI_thumbnail_update
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    IG_GUI_thumbnail_update
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    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 );