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Doc fix for left-fringe and right-fringe parameters (Bug#6930)

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* doc/lispref/frames.texi (Layout Parameters): Note the difference
between querying and setting parameters for left-fringe and
right-fringe.
This commit is contained in:
Chong Yidong 2011-04-10 16:43:35 -04:00
parent 3ad8bad038
commit 4095436808
2 changed files with 18 additions and 9 deletions
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6
doc/lispref/ChangeLog
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@ -1,3 +1,9 @@
2011-04-10 Chong Yidong <cyd@stupidchicken.com>
* frames.texi (Layout Parameters): Note the difference between
querying and setting parameters for left-fringe and right-fringe
(Bug#6930).
2011-03-21 Stefan Monnier <monnier@iro.umontreal.ca>
* minibuf.texi (Basic Completion): Be a bit more precise about the

21
doc/lispref/frames.texi
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@ -654,17 +654,20 @@ use the default width.
@itemx right-fringe
The default width of the left and right fringes of windows in this
frame (@pxref{Fringes}). If either of these is zero, that effectively
removes the corresponding fringe. A value of @code{nil} stands for
the standard fringe width, which is the width needed to display the
fringe bitmaps.
removes the corresponding fringe.
When you use @code{frame-parameter} to query the value of either of
these two frame parameters, the return value is always an integer.
When using @code{set-frame-parameter}, passing a @code{nil} value
imposes an actual default value of 8 pixels.
The combined fringe widths must add up to an integral number of
columns, so the actual default fringe widths for the frame may be
larger than the specified values. The extra width needed to reach an
acceptable total is distributed evenly between the left and right
fringe. However, you can force one fringe or the other to a precise
width by specifying that width as a negative integer. If both widths are
negative, only the left fringe gets the specified width.
columns, so the actual default fringe widths for the frame, as
reported by @code{frame-parameter}, may be larger than what you
specify. Any extra width is distributed evenly between the left and
right fringe. However, you can force one fringe or the other to a
precise width by specifying that width as a negative integer. If both
widths are negative, only the left fringe gets the specified width.
@item menu-bar-lines
The number of lines to allocate at the top of the frame for a menu