Specifies the button that initiated the drag operation.
Type
Description
Long
A Long expression that specifies the button that initiated the drag operation. 1
indicates the left mouse button, while 2 indicates the right mouse button.
The Button property indicates the button that initiated the drag operation.
The Button property is read-only. The drag operation can start if clicking
with left or right mouse button any visible / selectable / dragable layer in
the control. For instance, you can disable dragging with the right mouse
button by changing the Change parameter of the DragStart
event, to True, if the Button property is 2. The drag operation ends when the
user releases the mouse button, or the user presses the ESC key. The DragEnd
event notifies that the
dragging the layer ends.
