ImageGear for C and C++ on Windows v19.9 - Updated
IG_ARTX_GUI_register_hotspot_action
API Reference Guide > ArtXGUI Component API Reference > ArtXGUI Component Functions Reference > IG_ARTX_GUI_register_hotspot_action

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.