ImageGear for C and C++ on Windows v20.3 - Updated
IG_ARTX_GUI_mouse_down
API Reference Guide > ArtXGUI Component API Reference > ArtXGUI Component Functions Reference > IG_ARTX_GUI_mouse_down

This function is for handling the MouseDown event.

Declaration:

 
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UINT IG_ARTX_GUI_mouse_down(
        LPAT_ARTX_ACTION_PARAMS lpParams, 
        UINT nMessage, 
        LPAT_POINT lpPoint
);

Arguments:

Name Type Description
lpParams LPAT_ARTX_ACTION_PARAMS Action params such as HIGEAR handle, device context, window handle.
nMessage UINT Window message (WM_LBUTTONDOWN).
lpPoint LPAT_POINT Pointer to AT_POINT that contains mouse position.

Return Value:

0 if the function is successful, -1 otherwise.

Supported Raster Image Formats:

This function does not process image pixels.

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