Re: subwindows wanting to know top ancestor info.

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Article #23766

#23766

From: der Mouse
Date: Mon, 17 Jun 1991 02:11

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> Having a child/subwindow and knowing the top-most ancestor window id
> (under the root window but not including the root), how can I find
> the top-most window's width and height?

It sounds as though this is a special case of "I have a window ID, how
can I find its size?", where the child window is just a red herring.
If this is so you should look at XGetWindowAttributes and/or
XGetGeometry.

> I tried [...], but this blew up things using the shape extensions.

What do you want for a SHAPEd window?  The current shape?  The default
rectangle (what the shape would be if you set a mask of None)?  The
minimal bounding box of the current shape?

For the first, you need to use the XShapeGetRectangles call; for the
second, XGetWindowAttributes/XGetGeometry; for the third,
XShapeQueryExtents.

					der Mouse

			old: mcgill-vision!mouse
			new: mouse@larry.mcrcim.mcgill.edu

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From: mouse@lightning.mcrcim.mcgill.EDU (der Mouse)
Newsgroups: comp.windows.x
Subject: Re:  subwindows wanting to know top ancestor info.
Message-ID: <9106170211.AA27965@lightning.McRCIM.McGill.EDU>
Date: 17 Jun 91 02:11:45 GMT
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