Description
If enabled, this event is reported when the user performs the standard Windows action to display a ContextMenu. These include clicking/releasing the right mouse button and pressing F10.
If the object has its own standard context menu, for example an Edit object, the default action is to display this menu. If the object is dockable (see Docking Property), the default action is to display the standard (English) Dyalog APL docking menu.
You may use this event to display your own pop-up context menu, by ⎕DQ'ing it within a callback function. In this case, your callback function should return 0 to disable the standard context menu.
The event message reported as the result of ⎕DQ, or supplied as the right argument to your callback function, is a 5-element vector as follows :
| [1] | Object | ref or character vector |
| [2] | Event | 'ContextMenu' or 410 |
| [3] | (reserved) | Empty character vector |
| [4] | Y | y-position of the mouse (number) |
| [5] | X | x-position of the mouse (number) |