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1 ;;; x-init.el --- initialization code for X windows
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2 ;; Copyright (C) 1990, 1993, 1994 Free Software Foundation, Inc.
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3 ;; Copyright (C) 1995 Board of Trustees, University of Illinois.
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4 ;; Copyright (C) 1995, 1996 Ben Wing.
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5
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6 ;; Author: various
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7 ;; Keywords: terminals
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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24
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25 ;;; Commentary:
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26
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27 ;;; Code:
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28
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29 ;;; If you want to change this variable, this is the place you must do it.
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30 ;;; Do not set it to a string containing periods. X doesn't like that.
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31 ;(setq x-emacs-application-class "Emacs")
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32
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33 ;;; selections and active regions
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34
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35 ;;; If and only if zmacs-regions is true:
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36 ;;;
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37 ;;; When a mark is pushed and the region goes into the "active" state, we
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38 ;;; assert it as the Primary selection. This causes it to be hilighted.
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39 ;;; When the region goes into the "inactive" state, we disown the Primary
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40 ;;; selection, causing the region to be dehilighted.
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41 ;;;
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42 ;;; Note that it is possible for the region to be in the "active" state
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43 ;;; and not be hilighted, if it is in the active state and then some other
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44 ;;; application asserts the selection. This is probably not a big deal.
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45
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46 (defun x-activate-region-as-selection ()
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47 (if (marker-buffer (mark-marker t))
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48 (x-own-selection (cons (point-marker t) (mark-marker t)))))
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49
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50 ;;; OpenWindows-like "find" processing. These functions are really Sunisms,
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51 ;;; but we put them here instead of in x-win-sun.el in case someone wants
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52 ;;; to use them when not running on a Sun console (presumably after adding
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53 ;;; the to different keys, or putting them on menus.)
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54
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55 (defvar ow-find-last-string nil)
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56 (defvar ow-find-last-clipboard nil)
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57
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58 (defun ow-find (&optional backward-p)
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59 "Search forward the next occurrence of the text of the selection."
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60 (interactive)
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61 (let ((sel (condition-case () (x-get-selection) (error nil)))
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62 (clip (condition-case () (x-get-clipboard) (error nil)))
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63 text)
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64 (setq text (cond
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65 (sel)
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66 ((not (equal clip ow-find-last-clipboard))
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67 (setq ow-find-last-clipboard clip))
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68 (ow-find-last-string)
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69 (t (error "No selection available"))))
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70 (setq ow-find-last-string text)
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71 (cond (backward-p
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72 (search-backward text)
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73 (set-mark (+ (point) (length text))))
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74 (t
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75 (search-forward text)
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76 (set-mark (- (point) (length text)))))
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77 (zmacs-activate-region)))
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78
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79 (defun ow-find-backward ()
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80 "Search backward the previous occurence of the text of the selection."
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81 (interactive)
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82 (ow-find t))
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83
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84 ;;; Load X-server specific code.
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85 ;;; Specifically, load some code to repair the grievous damage that MIT and
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86 ;;; Sun have done to the default keymap for the Sun keyboards.
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87
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88 (defun x-initialize-keyboard ()
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89 "Don't call this."
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90 (cond (;; This is some heuristic junk that tries to guess whether this is
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91 ;; a Sun keyboard.
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92 ;;
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93 ;; One way of implementing this (which would require C support) would
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94 ;; be to examine the X keymap itself and see if the layout looks even
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95 ;; remotely like a Sun - check for the Find key on a particular
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96 ;; keycode, for example. It'd be nice to have a table of this to
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97 ;; recognize various keyboards; see also xkeycaps.
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98 ;;
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99 (let ((vendor (x-server-vendor)))
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100 (or (string-match "Sun Microsystems" vendor)
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101 ;; MIT losingly fails to tell us what hardware the X server
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102 ;; is managing, so assume all MIT displays are Suns... HA HA!
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103 (string-equal "MIT X Consortium" vendor)
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104 (string-equal "X Consortium" vendor)))
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105 ;;
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106 ;; Ok, we think this could be a Sun keyboard. Load the Sun code.
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107 ;;
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108 (or (load "x-win-sun" t t)
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109 (warn "Unable to load term file x-win-sun"))
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110 )
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111 ((string-match "XFree86" (x-server-vendor))
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112 ;; Those XFree86 people do some weird keysym stuff, too.
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113 (or (load "x-win-xfree86" t t)
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114 (warn "Unable to load term file x-win-xfree86")))
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115 ))
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116
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117
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118 (defvar pre-x-win-initted nil)
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119
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120 (defun init-pre-x-win ()
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121 "Initialize X Windows at startup (pre). Don't call this."
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122 (if (not pre-x-win-initted)
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123 (progn
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124 (require 'x-iso8859-1)
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125 (setq character-set-property 'x-iso8859/1) ; see x-iso8859-1.el
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126
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127 (setq initial-frame-plist (if initial-frame-unmapped-p
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128 '(initially-unmapped t)
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129 nil))
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130 (setq pre-x-win-initted t))))
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131
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132 (defvar x-win-initted nil)
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133
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134 (defun init-x-win ()
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135 "Initialize X Windows at startup. Don't call this."
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136 (if (not x-win-initted)
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137 (progn
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138 (init-pre-x-win)
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139
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140 ;; Open the X display when this file is loaded
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141 ;; (Note that the first frame is created later.)
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142 (setq x-initial-argv-list (cons (car command-line-args)
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143 command-line-args-left))
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144 (make-x-device nil)
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145 (setq command-line-args-left (cdr x-initial-argv-list))
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146 (setq x-win-initted t))))
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147
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148 (defvar post-x-win-initted nil)
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149
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150 (defun init-post-x-win ()
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151 "Initialize X Windows at startup (post). Don't call this."
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152 (if (not post-x-win-initted)
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153 (progn
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154 ;; We can't load this until after the initial X device is created
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155 ;; because the icon initialization needs to access the display to get
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156 ;; any toolbar-related color resources.
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157 (if (featurep 'toolbar)
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158 (init-x-toolbar))
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159 ;; these are only ever called if zmacs-regions is true.
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160 (add-hook 'zmacs-deactivate-region-hook 'x-disown-selection)
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161 (add-hook 'zmacs-activate-region-hook 'x-activate-region-as-selection)
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162 (add-hook 'zmacs-update-region-hook 'x-activate-region-as-selection)
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163
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164 ;; Motif-ish bindings
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165 ;; The following two were generally unliked.
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166 ;;(define-key global-map '(shift delete)
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167 ;; 'x-kill-primary-selection)
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168 ;;(define-key global-map '(control delete)
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169 ;; 'x-delete-primary-selection)
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170 (define-key global-map '(shift insert) 'x-yank-clipboard-selection)
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171 (define-key global-map '(control insert) 'x-copy-primary-selection)
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172 ;; (Are these Sunisms?)
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173 (define-key global-map 'copy 'x-copy-primary-selection)
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174 (define-key global-map 'paste 'x-yank-clipboard-selection)
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175 (define-key global-map 'cut 'x-kill-primary-selection)
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176
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177 (define-key global-map 'menu 'popup-mode-menu)
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178 ;;(define-key global-map '(shift menu) 'x-goto-menubar) ;NYI
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179
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180 ;; This runs after the first frame has been created (we can't
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181 ;; talk to the X server before that) but before the
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182 ;; site-start-file or .emacs file, so sites and users have a
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183 ;; chance to override it.
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184 (add-hook 'before-init-hook 'x-initialize-keyboard)
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185
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186 (setq post-x-win-initted t))))
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187
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188 (defun make-frame-on-display (display &optional parms)
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189 "Create a frame on the X display named DISPLAY.
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190 DISPLAY should be a standard display string such as \"unix:0\",
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191 or nil for the display specified on the command line or in the
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192 DISPLAY environment variable.
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193
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194 PROPS should be an plist of properties, as in the call to `make-frame'.
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195
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196 This function opens a connection to the display or reuses an existing
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197 connection.
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198
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199 This function is a trivial wrapper around `make-frame-on-device'."
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200 (interactive "sMake frame on display: ")
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201 (if (equal display "") (setq display nil))
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202 (make-frame-on-device 'x display parms))
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203
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204 ;;; x-init.el ends here
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