EVENT_MOUSE_WHEEL_SCROLL
Description
When a user scrolls the mouse wheel, LabWindows/CVI generates an EVENT_MOUSE_WHEEL_SCROLL event and sends the event to the callback function associated with the control that has the input focus or panel.
This event is swallowable. Return 1 to swallow EVENT_MOUSE_WHEEL_SCROLL.
Applies To
Event Data Parameters
eventData1 = The scroll action (MOUSE_WHEEL_SCROLL_UP, MOUSE_WHEEL_SCROLL_DOWN, MOUSE_WHEEL_PAGE_UP, MOUSE_WHEEL_PAGE_DOWN, MOUSE_WHEEL_SCROLL_LEFT, or MOUSE_WHEEL_SCROLL_RIGHT)
eventData2 = 0 if eventData1 is MOUSE_WHEEL_PAGE_UP or MOUSE_WHEEL_PAGE_DOWN. If eventData1 is MOUSE_WHEEL_SCROLL_UP, MOUSE_WHEEL_SCROLL_DOWN, MOUSE_WHEEL_SCROLL_LEFT, or MOUSE_WHEEL_SCROLL_RIGHT eventData2 is the amount to scroll, such as the number of lines the user scrolled
LabWindows/CVI Compatibility
LabWindows/CVI 8.1 and later