| Applies To: | CoolBand | CoolBar | Form | SubForm | ToolControl |
Description
If enabled, this event is reported by a dockable object (one whose Dockable property is set to 1) when the user starts to drag it using the mouse.
The event message reported as the result of ⎕DQ, or supplied as the right argument to your callback function, is a 2-element vector as follows :
| [1] | Object | ref or character vector |
| [2] | Event | 'DockStart' or 480 |
A callback function may prevent the docking operation from starting by returning 0.
The associated callback is run immediately while the windows notification is still on the stack. See High-Priority Callback Functions.