droppable-p

Generic Function

Package: common-graphics

Arguments: dropped-on-widget drag-from-widget

Returns true if drag-from-widget is drop-able on dropped-on-widget.

The default droppable-p method returns nil, so an application needs to add droppable-p methods that return true for those cases where dropping should be allowed. In the IDE, only the Inspector allows values to be dropped into it. (To initiate a drag in the IDE, hold the Alt key and then left-click and drag a value.)

Note: in releases prior to 6.0, the default method often returned true, but in 6.0, as said above, it returns nil in all cases.

Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.

The documentation is described in introduction.htm and the index is in index.htm.

Created 2000.10.5.