ImageGear for C and C++ on Windows v19.0
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.
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UINT IG_ARTX_GUI_mouse_down(
LPAT_ARTX_ACTION_PARAMS lpParams,
UINT nMessage,
LPAT_POINT lpPoint
);
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| 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. |
0 if the function is successful, -1 otherwise.
This function does not process image pixels.