Hello,

  I have a drag-n-drop UI where I use the [NSCursor disappearingItemCursor] to 
indicate that if you drop now, you're going to remove the item being dragged. I 
do this by setting the cursor when my dragging destination receives a 
-draggingExited: message (the dragging destination and source are the same, an 
NSView subclass).

It works well inside the application but when the cursor leaves the application 
window, things break down. When this happens the cursor is reset to the default 
arrow cursor. What's worse is that it doesn't return to -disappearingItemCursor 
when the cursor re-enters my window - not view - without releasing the mouse. 

What I'd like to get to is a behavior like that of Finder. When you drag a 
"Places" item out of the source list Finder somehow manages to maintain the 
cursor, even if the app behind the cursor is something else.

My drag starts with a call to NSView's 
-dragImage:at:offset:event:pasteboard:source:slideBack:

I'd rather not implement the whole dragging UI (transparent foreground window 
occupying the entire screen, painting the drag image myself - at least I think 
that's how it could work) if I can avoid it because I fear there are countless 
little traps to hit on the way.

Is there a way not to get the cursor reset by AppKit behind my back?

Regards
Markus
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__________________________________________
Markus Spoettl

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