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DRC2ff39b82011-07-28 08:38:59 +00001//
2// "$Id: Fl_display.cxx 7903 2010-11-28 21:06:39Z matt $"
3//
4// Display function for the Fast Light Tool Kit (FLTK).
5//
6// Copyright 1998-2010 by Bill Spitzak and others.
7//
8// This library is free software; you can redistribute it and/or
9// modify it under the terms of the GNU Library General Public
10// License as published by the Free Software Foundation; either
11// version 2 of the License, or (at your option) any later version.
12//
13// This library is distributed in the hope that it will be useful,
14// but WITHOUT ANY WARRANTY; without even the implied warranty of
15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16// Library General Public License for more details.
17//
18// You should have received a copy of the GNU Library General Public
19// License along with this library; if not, write to the Free Software
20// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
21// USA.
22//
23// Please report all bugs and problems on the following page:
24//
25// http://www.fltk.org/str.php
26//
27
28// Startup method to set what display to use.
29// Using setenv makes programs that are exec'd use the same display.
30
31#include <FL/Fl.H>
32#include <stdlib.h>
33#include "flstring.h"
34
35/**
36 Sets the X display to use for all windows. Actually this just sets
37 the environment variable $DISPLAY to the passed string, so this only
38 works before you show() the first window or otherwise open the display,
39 and does nothing useful under WIN32.
40*/
41void Fl::display(const char *d) {
42#if defined(__APPLE__) || defined(WIN32)
43 (void)d;
44#else
45 static char e[1024];
46 strcpy(e,"DISPLAY=");
47 strlcat(e,d,sizeof(e));
48 for (char *c = e+8; *c!=':'; c++) {
49 if (!*c) {
50 strlcat(e,":0.0",sizeof(e));
51 break;
52 }
53 }
54 putenv(e);
55#endif // __APPLE__
56}
57
58//
59// End of "$Id: Fl_display.cxx 7903 2010-11-28 21:06:39Z matt $".
60//