ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Callback Functions Reference / LPFNIG_GUISELECT
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    LPFNIG_GUISELECT
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    This callback function is called when the user has delineated a rectangle, using the mouse, in a GUI image window.

    Declaration:

     
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    typedef VOID (ACCUAPI LPFNIG_GUISELECT) (
            LPVOID lpPrivate,  
            const LPAT_RECT lprcSelect 
    );
    

    Arguments:

    Name Type Description
    lpPrivate LPVOID Far pointer to private data area.
    lprcSelect const LPAT_RECT Far pointer to Selection Rectangle.

    Return Value:

    None

    Supported Raster Image Formats:

    This function does not process image pixels.

    Sample:

    Clipboard, Display

    Example:

    See the example for function IG_GUI_select_track_mouse().

    Remarks:

    This type of callback function is registered during a call to IG_GUI_select_track_mouse().

    Argument lprcSelect tells the coordinates of two opposite corners of the rectangle.