ImageGear for C and C++ on Windows v19.4 - Updated
IG_ARTX_action_mouse_down
This function is to pass mouse events to GUI action.
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AT_ERRCOUNT IG_ARTX_action_mouse_down(
HIG_ARTX_ACTION hAction,
UINT nMessage,
LPAT_POINT lpPoint,
LPUINT lpnStatus
);
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| Name | Type | Description |
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| hAction | HIG_ARTX_ACTION | Handle of GUI action. |
| nMessage | UINT | Mouse event parameters. |
| lpPoint | LPAT_POINT | Screen position of mouse event. |
| lpnStatus | LPUINT | Pointer to storage for action state. |
Error count.
This function does not process image pixels.
This function should be called when user presses the mouse button.