ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / ArtXGUI Component API Reference / ArtXGUI Component Functions Reference / IG_ARTX_GUI_register_hotspot_action
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    IG_ARTX_GUI_register_hotspot_action
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    This function is used to register a callback function that will be called from the ArtX GUI when a user clicks on a hotspot mark.

    Declaration:

     
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    void IG_ARTX_GUI_register_hotspot_action(
            LPFNIG_ARTX_GUI_HOTSPOT_ACTION lpfnHotSpotAction, 
            LPVOID lpClientData
    );
    

    Arguments:

    Name Type Description
    lpfnHotSpotAction LPFNIG_ARTX_GUI_HOTSPOT_ACTION A callback to register.
    lpClientData LPVOID Client data passed to the callback.

    Return Value:

    None

    Supported Raster Image Formats:

    This function does not process image pixels.

    Remarks:

    You can use this function in a PDF application to register a callback that would perform a PDF action associated with the hotspot mark's link.