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[Emacs-diffs] Changes to emacs/doc/lispref/frames.texi,v
From: |
Chong Yidong |
Subject: |
[Emacs-diffs] Changes to emacs/doc/lispref/frames.texi,v |
Date: |
Tue, 18 Nov 2008 07:05:36 +0000 |
CVSROOT: /sources/emacs
Module name: emacs
Changes by: Chong Yidong <cyd> 08/11/18 07:05:36
Index: frames.texi
===================================================================
RCS file: /sources/emacs/emacs/doc/lispref/frames.texi,v
retrieving revision 1.14
retrieving revision 1.15
diff -u -b -r1.14 -r1.15
--- frames.texi 11 Nov 2008 11:47:59 -0000 1.14
+++ frames.texi 18 Nov 2008 07:05:36 -0000 1.15
@@ -230,6 +230,8 @@
parameters do something special. If the terminal supports colors, the
parameters @code{foreground-color}, @code{background-color},
@code{background-mode} and @code{display-type} are also meaningful.
+If the terminal supports frame transparency, the parameter
address@hidden is also meaningful.
You can use frame parameters to define frame-local bindings for
variables. @xref{Frame-Local Variables}.
@@ -748,6 +750,27 @@
@code{screen-gamma} value smaller than 2.2. This requests correction
that makes colors darker. A screen gamma value of 1.5 may give good
results for LCD color displays.
+
address@hidden alpha
address@hidden opacity, frame
address@hidden transparency, frame
address@hidden frame-alpha-lower-limit
+This parameter specifies the opacity of the frame, on graphical
+displays that support variable opacity. It should be an integer
+between 0 and 100, where 0 means completely transparent and 100 means
+completely opaque. It can also have a @code{nil} value, which tells
+Emacs not to set the frame opacity (leaving it to the window manager).
+
+To prevent the frame from disappearing completely from view, the
+variable @var{frame-alpha-lower-limit} defines a lower opacity limit.
+If the value of the frame parameter is less than the value of this
+variable, Emacs uses the latter. By default,
address@hidden is 20.
+
+The @code{alpha} frame parameter can also be a cons cell
address@hidden(@samp{active} . @samp{inactive})}, where @samp{active} is the
+opacity of the frame when it is selected, and @samp{inactive} is the
+opactity when it is not selected.
@end table
These frame parameters are semi-obsolete in that they are automatically