Hi all,

I have developed an app with an NSWindow containing a NSScrollView subclass for 
the document window. When I ry to grab this window with Grab.app for 
documentation purposes, Grab.app tells me

        The window could not be captured
        The contents of this window cannot be shared

I get this when grabbing this special window of my app only. All others windows 
in my app and other apps work. Any idea what is blocking Grab.app from taking a 
picture of my window? This works on MacOSX 10.6 but on Yosemite I get the above 
error message. This must be some recently invented security mechanism (delegate 
method of NSWindow or who knows what). 

I goggled for the above error message but found nothing helpful. Any idea?

Thanks a lot,

 Andreas




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