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Make raise-frame work on Cygwin

From: Katsumi Yamaoka
Subject: Make raise-frame work on Cygwin
Date: Thu, 17 May 2012 08:44:48 +0900
User-agent: Gnus/5.130006 (真 Gnus v0.6) Emacs/24.1.50 (i686-pc-cygwin)


raise-frame doesn't pop up an existing frame on Cygwin (rootless).
If there are many frames on a Windows screen, we have no means to
pop up a certain Emacs frame that is hidden by the other frames,
except for manually digging it up by mouse.  But at last I found
a workaround:

(defadvice raise-frame (before make-it-work (&optional frame) activate)
  "Make it work on Cygwin."
  (when frame (make-frame-invisible frame)))

iconify-frame instead of make-frame-invisible there has no effect.
It also revealed that some ELisp applications call raise-frame two
or more times at a time since a raised frame blinks. ;-)

BTW, I still use wmctrl on Fedora:

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