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GDB: Getting information about a window

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GDB: Getting information about a window

Subject: GDB: Getting information about a window
From: Eric Gorr <email@hidden>
Date: Tue, 25 Aug 2009 14:54:11 -0400

I need to figure out which window the function GetUserFocusWindow has returned from within GDB

(gdb) call (WindowRef)GetUserFocusWindow()
$1 = (WindowRef) 0x1f7dc6e0

I figured that the easiest way would be to get the title of the window using something like CopyWindowTitleAsCFString, but I am uncertain how to make this kind of call from within GDB. My various attempts so far simply result in an error message mentioning KERN_PROTECTION_FAILURE, etc.

(CopyWindowTitleAsCFString takes two parameters....the first is a WindowRef and the second is a pointer to a CFStringRef. It returns an OSStatus error code.)

I'm not that adept as using GDB from the command line and was hoping that someone might have a suggestion.

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