From 23bb1fdfda8be0f3265d8b88ccca27475915409b Mon Sep 17 00:00:00 2001 From: Chong Yidong Date: Sun, 15 Apr 2007 19:41:27 +0000 Subject: [PATCH] (Multiple Displays): Add note about "multi-monitor" setups. (Display Feature Testing): Note that display refers to all physical monitors for multi-monitor setups. --- lispref/frames.texi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/lispref/frames.texi b/lispref/frames.texi index 1bad33cdb4e..527f27385f3 100644 --- a/lispref/frames.texi +++ b/lispref/frames.texi @@ -150,6 +150,13 @@ screens belonging to one server, Emacs knows by the similarity in their names that they share a single keyboard, and it treats them as a single terminal. + Note that some graphical terminals can output to more than a one +monitor (or other output device) at the same time. On these +``multi-monitor'' setups, a single @var{display} value controls the +output to all the physical monitors. In this situation, there is +currently no platform-independent way for Emacs to distinguish between +the different physical monitors. + @deffn Command make-frame-on-display display &optional parameters This creates and returns a new frame on display @var{display}, taking the other frame parameters from @var{parameters}. Aside from the @@ -2089,11 +2096,19 @@ This function returns the number of screens associated with the display. @defun display-pixel-height &optional display This function returns the height of the screen in pixels. On a character terminal, it gives the height in characters. + +For graphical terminals, note that on ``multi-monitor'' setups this +refers to the pixel width for all physical monitors associated with +@var{display}. @xref{Multiple Displays}. @end defun @defun display-pixel-width &optional display This function returns the width of the screen in pixels. On a character terminal, it gives the width in characters. + +For graphical terminals, note that on ``multi-monitor'' setups this +refers to the pixel width for all physical monitors associated with +@var{display}. @xref{Multiple Displays}. @end defun @defun display-mm-height &optional display -- 2.11.4.GIT