MouseWheel |

Funktionsname | c:<CONTROL-NAME>_OnMouseWheel
Syntax | `(defun c:<CONTROL-NAME>_OnMouseWheel (Flags [as Bitflag] ZDelta [as Long] X [as Long] Y [as Long] /) )`
Rückgabewert | Ignored
Ausgelöst durch | Picture Box, Slide View

This event is triggered when the mouse wheel is moved while the mouse cursor is on the control. Flags describes the state of the [Shift] and [Ctrl] keys, and the mouse buttons. ZDelta is a positive or negative number representing the direction and magnitude of the change in the wheel position. X and Y specify the control client coordinates where the event occurred.

Flags bit | Value | Meaning
--- | --- | ---
0 | 1 | Left mouse button pressed
1 | 2 | Right mouse button pressed
2 | 4 | [Shift] key pressed
3 | 8 | [Ctrl] key pressed
4 | 16 | Middle mouse button pressed