I'm curious why you need to know where the drag originated since it
generally shouldn't matter. Do you have to do some extra work in one
case? And what happens if you see a drag from another application?
On Mar 25, 2010, at 7:55 AM, Jeffrey J. Early wrote:
Is there any way to determine the source of a drag operation outside
your own application? For example, if I'm set to receive
NSFilenamesPboardType, then I'd like to distinguish between the
Finder and Aperture as drag sources.
I had thought I'd seen a solution to this at one point, but can't
seem to find anything. The draggingSource in <NSDraggingInfo> is set
to nil when the source is an external application. The pasteboard
doesn't seem to guarantee any that information, although some
sources will occasionally have unique pasteboard types that might
distinguish them, but only as an exception.
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