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428
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1 /* Define device-object for XEmacs.
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995 Ben Wing
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4 Copyright (C) 1995 Sun Microsystems
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 /* Written by Chuck Thompson and Ben Wing. */
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26
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27 #ifndef _XEMACS_DEVICE_H_
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28 #define _XEMACS_DEVICE_H_
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29
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30 #include "console.h"
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31
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32 /* This should really be in redisplay.h but by putting it here we
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33 won't have to ensure that redisplay.h is always included before
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34 this file. */
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35 struct pixel_to_glyph_translation_cache
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36 {
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37 unsigned int valid :1;
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38 struct frame *frame;
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39 int low_x_coord, high_x_coord, col, obj_x;
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40 int low_y_coord, high_y_coord, row, obj_y;
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41 struct window *w;
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42 Bufpos bufpos;
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43 Bufpos closest;
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44 Charcount modeline_closest;
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45 Lisp_Object obj1, obj2;
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46 int retval;
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47 };
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48
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49 #define DEVICE_TYPE_NAME(d) ((d)->devmeths->name)
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50 #define DEVICE_TYPE(d) ((d)->devmeths->symbol)
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51 #define DEVICE_SPECIFIC_FRAME_PROPS(d) \
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52 ((d)->devmeths->device_specific_frame_props)
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53
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54 /******** Accessing / calling a device method *********/
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55
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56 #define HAS_DEVMETH_P(d, m) HAS_CONTYPE_METH_P ((d)->devmeths, m)
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57 #define DEVMETH(d, m, args) CONTYPE_METH ((d)->devmeths, m, args)
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58 #define MAYBE_DEVMETH(d, m, args) MAYBE_CONTYPE_METH ((d)->devmeths, m, args)
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59 #define DEVMETH_OR_GIVEN(d, m, args, given) \
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60 CONTYPE_METH_OR_GIVEN((d)->devmeths, m, args, given)
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61 #define MAYBE_INT_DEVMETH(d, m, args) \
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62 MAYBE_INT_CONTYPE_METH ((d)->devmeths, m, args)
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63 #define MAYBE_LISP_DEVMETH(d, m, args) \
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64 MAYBE_LISP_CONTYPE_METH ((d)->devmeths, m, args)
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65
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66 struct device
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67 {
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68 struct lcrecord_header header;
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69
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70 /* Methods for this device's console. This can also be retrieved
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71 through device->console, but it's faster this way. */
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72 struct console_methods *devmeths;
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73
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74 /* Name of this device, for resourcing and printing purposes.
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75 If not explicitly given, it's initialized in a device-specific
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76 manner. */
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77 Lisp_Object name;
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78
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79 /* What this device is connected to */
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80 Lisp_Object connection;
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81
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82 /* A canonical name for the connection that is used to determine
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83 whether `make-device' is being called on an existing device. */
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84 Lisp_Object canon_connection;
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85
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86 /* List of frames on this device. */
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87 Lisp_Object frame_list;
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88
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89 /* The console this device is on. */
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90 Lisp_Object console;
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91
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92 /* Frame which is "currently selected". This is what `selected-frame'
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93 returns and is the default frame for many operations. This may
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94 not be the same as frame_with_focus; `select-frame' changes the
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95 selected_frame but not the frame_with_focus. However, eventually
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96 either the two values will be the same, or frame_with_focus will
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97 be nil: right before waiting for an event, the focus is changed
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98 to point to the selected_frame if XEmacs currently has the focus
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99 on this device. Note that frame_with_focus may be nil (none of the
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100 frames on this device have the window-system focus), but
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101 selected_frame will never be nil if there are any frames on
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102 the device. */
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103 Lisp_Object selected_frame;
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104 /* Frame that currently contains the window-manager focus, or none.
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105 Note that we've split frame_with_focus into two variables.
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106 frame_with_focus_real is the value we use most of the time,
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107 but frame_with_focus_for_hooks is used for running the select-frame-hook
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108 and deselect-frame-hook. We do this because we split the focus handling
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109 into two parts: one part (deals with drawing the solid/box cursor)
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110 runs as soon as a focus event is received; the other (running the
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111 hooks) runs after any pending sit-for/sleep-for/accept-process-output
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112 calls are done. */
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113 Lisp_Object frame_with_focus_real;
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114 Lisp_Object frame_with_focus_for_hooks;
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115 /* If we have recently issued a request to change the focus as a
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116 result of select-frame having been called, the following variable
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117 records the frame we are trying to focus on. The reason for this
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118 is that the window manager may not grant our request to change
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119 the focus (so we can't just change frame_with_focus), and we don't
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120 want to keep sending requests again and again to the window manager.
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121 This variable is reset whenever a focus-change event is seen. */
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122 Lisp_Object frame_that_ought_to_have_focus;
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123
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124 /* Color class of this device. */
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125 Lisp_Object device_class;
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126
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127 /* Alist of values for user-defined tags in this device. */
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128 Lisp_Object user_defined_tags;
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129
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130 /* Hash tables for device-specific objects (fonts, colors, etc).
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131 These are key-weak hash tables (or hash tables containing key-weak
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132 hash tables) so that they disappear when the key goes away. */
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133
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134 /* This is a simple key-weak hash table hashing color names to
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135 instances. */
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136 Lisp_Object color_instance_cache;
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137
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138 /* This is a simple key-weak hash table hashing font names to
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139 instances. */
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140 Lisp_Object font_instance_cache;
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141
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142 #ifdef MULE
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143 /* This is a bi-level cache, where the hash table in this slot here
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144 indexes charset objects to key-weak hash tables, which in turn
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145 index font names to more specific font names that match the
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146 given charset's registry. This speeds up the horrendously
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147 slow XListFonts() operation that needs to be done in order
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148 to determine an appropriate font. */
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149 Lisp_Object charset_font_cache;
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150 #endif
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151
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152 /* This is a bi-level cache, where the hash table in this slot here
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153 indexes image-instance-type masks (there are currently 6
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154 image-instance types and thus 64 possible masks) to key-weak hash
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155 tables like the one for colors. */
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156 Lisp_Object image_instance_cache;
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157
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158 /* A structure of auxiliary data specific to the device type.
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159 struct x_device is used for X window frames; defined in console-x.h
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160 struct tty_device is used to TTY's; defined in console-tty.h */
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161 void *device_data;
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162
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163 /* redisplay flags */
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164 unsigned int buffers_changed :1;
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165 unsigned int clip_changed :1;
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166 unsigned int extents_changed :1;
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167 unsigned int faces_changed :1;
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168 unsigned int frame_changed :1;
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169 unsigned int glyphs_changed :1;
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170 unsigned int subwindows_changed :1;
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171 unsigned int subwindows_state_changed :1;
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172 unsigned int icon_changed :1;
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173 unsigned int menubar_changed :1;
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174 unsigned int modeline_changed :1;
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175 unsigned int point_changed :1;
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176 unsigned int size_changed :1;
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177 unsigned int gutter_changed :1;
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178 unsigned int toolbar_changed :1;
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179 unsigned int windows_changed :1;
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180 unsigned int windows_structure_changed :1;
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181
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182 unsigned int locked :1;
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183
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184 /* Cache information about last pixel position translated to a
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185 glyph. The law of locality applies very heavily here so caching
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186 the value leads to a significant win. At the moment this is
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187 really X specific but once we have generic mouse support it won't
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188 be. */
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189 struct pixel_to_glyph_translation_cache pixel_to_glyph_cache;
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190
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191 /* Output baud rate of device; used for redisplay decisions. */
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192 int baud_rate;
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193
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194 /* sound flags */
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195 unsigned int on_console_p :1;
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196 unsigned int connected_to_nas_p :1;
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197
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198
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199 /* File descriptors for input and output. Much of the time
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200 (but not always) these will be the same. For an X device,
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201 these both hold the file descriptor of the socket used
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202 to communicate with the X server. For a TTY device, these
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203 may or may not be the same and point to the terminal that
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204 is used for I/O. */
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205 int infd, outfd;
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206
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207 /* infd and outfd are moved outside HAVE_UNIXOID_EVENT_LOOP conditionals,
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208 because Win32, presumably the first port which does not use select()
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209 polling, DOES have handles for a console device. -- kkm */
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210
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211 #ifdef HAVE_UNIXOID_EVENT_LOOP
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212 /* holds some data necessary for SIGIO control. Perhaps this should
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213 be inside of device_data; but it is used for both TTY's and X
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214 device. Perhaps it should be conditionalized on SIGIO; but
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215 this requires including syssignal.h and systty.h. */
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216 int old_fcntl_owner;
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217 #endif
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218 };
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219
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220 DECLARE_LRECORD (device, struct device);
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221 #define XDEVICE(x) XRECORD (x, device, struct device)
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222 #define XSETDEVICE(x, p) XSETRECORD (x, p, device)
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223 #define DEVICEP(x) RECORDP (x, device)
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224 #define CHECK_DEVICE(x) CHECK_RECORD (x, device)
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225 #define CONCHECK_DEVICE(x) CONCHECK_RECORD (x, device)
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226
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227 #define CHECK_LIVE_DEVICE(x) do { \
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228 CHECK_DEVICE (x); \
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229 if (! DEVICE_LIVE_P (XDEVICE (x))) \
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230 dead_wrong_type_argument (Qdevice_live_p, (x)); \
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231 } while (0)
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232 #define CONCHECK_LIVE_DEVICE(x) do { \
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233 CONCHECK_DEVICE (x); \
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234 if (! DEVICE_LIVE_P (XDEVICE (x))) \
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235 x = wrong_type_argument (Qdevice_live_p, (x)); \
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236 } while (0)
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237
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238 #define DEVICE_TYPE_P(d, type) EQ (DEVICE_TYPE (d), Q##type)
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239
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240 #ifdef ERROR_CHECK_TYPECHECK
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241 INLINE struct device *
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242 error_check_device_type (struct device *d, Lisp_Object sym);
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243 INLINE struct device *
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244 error_check_device_type (struct device *d, Lisp_Object sym)
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245 {
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246 assert (EQ (DEVICE_TYPE (d), sym));
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247 return d;
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248 }
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249 # define DEVICE_TYPE_DATA(d, type) \
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250 ((struct type##_device *) error_check_device_type (d, Q##type)->device_data)
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251 #else
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252 # define DEVICE_TYPE_DATA(d, type) \
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253 ((struct type##_device *) (d)->device_data)
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254 #endif
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255
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256 #define CHECK_DEVICE_TYPE(x, type) \
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257 do { \
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258 CHECK_DEVICE (x); \
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259 if (!(DEVICEP (x) && DEVICE_TYPE_P (XDEVICE (x), \
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260 type))) \
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261 dead_wrong_type_argument \
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262 (type##_console_methods->predicate_symbol, x); \
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263 } while (0)
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264 #define CONCHECK_DEVICE_TYPE(x, type) \
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265 do { \
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266 CONCHECK_DEVICE (x); \
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267 if (!(DEVICEP (x) && DEVICE_TYPE_P (XDEVICE (x), \
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268 type))) \
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269 x = wrong_type_argument \
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270 (type##_console_methods->predicate_symbol, x); \
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271 } while (0)
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272
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273 /* #### These should be in the device-*.h files but there are
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274 too many places where the abstraction is broken. Need to
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275 fix. */
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276
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277 #define DEVICE_X_P(dev) CONSOLE_TYPESYM_X_P (DEVICE_TYPE (dev))
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278 #define CHECK_X_DEVICE(z) CHECK_DEVICE_TYPE (z, x)
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279 #define CONCHECK_X_DEVICE(z) CONCHECK_DEVICE_TYPE (z, x)
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280
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281 #define DEVICE_MSWINDOWS_P(dev) CONSOLE_TYPESYM_MSWINDOWS_P (DEVICE_TYPE (dev))
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282 #define CHECK_MSWINDOWS_DEVICE(z) CHECK_DEVICE_TYPE (z, mswindows)
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283 #define CONCHECK_MSWINDOWS_DEVICE(z) CONCHECK_DEVICE_TYPE (z, mswindows)
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284
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285 #define DEVICE_TTY_P(dev) CONSOLE_TYPESYM_TTY_P (DEVICE_TYPE (dev))
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286 #define CHECK_TTY_DEVICE(z) CHECK_DEVICE_TYPE (z, tty)
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287 #define CONCHECK_TTY_DEVICE(z) CONCHECK_DEVICE_TYPE (z, tty)
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288
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289 #define DEVICE_STREAM_P(dev) CONSOLE_TYPESYM_STREAM_P (DEVICE_TYPE (dev))
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290 #define CHECK_STREAM_DEVICE(z) CHECK_DEVICE_TYPE (z, stream)
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291 #define CONCHECK_STREAM_DEVICE(z) CONCHECK_DEVICE_TYPE (z, stream)
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292
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293 #define DEVICE_WIN_P(dev) CONSOLE_TYPESYM_WIN_P (DEVICE_TYPE (dev))
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294
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295 EXFUN (Fdevice_console, 1);
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296 EXFUN (Fdevice_name, 1);
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297 EXFUN (Fmake_device, 3);
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298 EXFUN (Fselected_device, 1);
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299
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300 extern Lisp_Object Qcreate_device_hook, Qdelete_device_hook, Qgrayscale;
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301 extern Lisp_Object Qinit_post_tty_win, Qmono, Vdefault_x_device;
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302 extern Lisp_Object Vdevice_class_list;
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303
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304 int valid_device_class_p (Lisp_Object class);
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305
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306 #define DEVICE_LIVE_P(d) (!EQ (DEVICE_TYPE (d), Qdead))
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307
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308 #define DEVICE_REDISPLAY_INFO(d) ((d)->redisplay_info)
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309
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310 #define DEVICE_NAME(d) ((d)->name)
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311 #define DEVICE_CLASS(d) ((d)->device_class)
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312 /* Catch people attempting to set this. */
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313 #define DEVICE_SELECTED_FRAME(d) NON_LVALUE ((d)->selected_frame)
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314 #define DEVICE_FRAME_WITH_FOCUS_REAL(d) ((d)->frame_with_focus_real)
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315 #define DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS(d) ((d)->frame_with_focus_for_hooks)
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316 #define DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS(d) \
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317 ((d)->frame_that_ought_to_have_focus)
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318 #define DEVICE_USER_DEFINED_TAGS(d) ((d)->user_defined_tags)
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319 #define DEVICE_FRAME_LIST(d) ((d)->frame_list)
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320 #define DEVICE_CONNECTION(d) ((d)->connection)
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321 #define DEVICE_CANON_CONNECTION(d) ((d)->canon_connection)
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322 #define DEVICE_CONSOLE(d) ((d)->console)
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323 #define DEVICE_BAUD_RATE(d) ((d)->baud_rate)
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324 #define DEVICE_INFD(d) ((d)->infd)
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325 #define DEVICE_OUTFD(d) ((d)->outfd)
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326 #define DEVICE_OLD_FCNTL_OWNER(d) ((d)->old_fcntl_owner)
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327 #define DEVICE_ON_CONSOLE_P(d) ((d)->on_console_p)
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328 #define DEVICE_CONNECTED_TO_NAS_P(d) ((d)->connected_to_nas_p)
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329
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330 #define LOCK_DEVICE(d) ((void) ((d)->locked = 1))
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331 #define UNLOCK_DEVICE(d) ((void) ((d)->locked = 0))
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332
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333 #define INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE(d) \
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334 ((void) ((d)->pixel_to_glyph_cache.valid = 0))
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335
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336 #define INVALIDATE_PIXEL_TO_GLYPH_CACHE do { \
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337 Lisp_Object IPTGC_devcons, IPTGC_concons; \
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338 DEVICE_LOOP_NO_BREAK (IPTGC_devcons, IPTGC_concons) \
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339 INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE (XDEVICE (XCAR (IPTGC_devcons))); \
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340 } while (0)
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341
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342 #define MARK_DEVICE_FACES_CHANGED(d) \
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343 ((void) (faces_changed = (d)->faces_changed = 1))
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344
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345 #define MARK_DEVICE_GLYPHS_CHANGED(d) \
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346 ((void) (glyphs_changed = (d)->glyphs_changed = 1))
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347
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348 #define MARK_DEVICE_SUBWINDOWS_CHANGED(d) \
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349 ((void) (subwindows_changed = (d)->subwindows_changed = 1))
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350
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351 #define MARK_DEVICE_SUBWINDOWS_STATE_CHANGED(d) \
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352 ((void) (subwindows_state_changed = (d)->subwindows_state_changed = 1))
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353
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354 #define MARK_DEVICE_TOOLBARS_CHANGED(d) \
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355 ((void) (toolbar_changed = (d)->toolbar_changed = 1))
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356
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357 #define MARK_DEVICE_GUTTERS_CHANGED(d) \
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358 ((void) (gutter_changed = (d)->gutter_changed = 1))
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359
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360 #define MARK_DEVICE_SIZE_CHANGED(d) \
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361 ((void) (size_changed = (d)->size_changed = 1))
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362
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363 #define MARK_DEVICE_FRAMES_FACES_CHANGED(d) do { \
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364 struct device *mdffc_d = (d); \
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365 Lisp_Object frmcons; \
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366 DEVICE_FRAME_LOOP (frmcons, mdffc_d) \
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367 XFRAME (XCAR (frmcons))->faces_changed = 1; \
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368 MARK_DEVICE_FACES_CHANGED (mdffc_d); \
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369 } while (0)
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370
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371 #define MARK_DEVICE_FRAMES_GLYPHS_CHANGED(d) do { \
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372 struct device *mdffc_d = (d); \
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373 Lisp_Object frmcons; \
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374 DEVICE_FRAME_LOOP (frmcons, mdffc_d) \
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375 XFRAME (XCAR (frmcons))->glyphs_changed = 1; \
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376 MARK_DEVICE_GLYPHS_CHANGED (mdffc_d); \
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377 } while (0)
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378
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379 #define MARK_DEVICE_FRAME_CHANGED(d) \
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380 ((void) (frame_changed = (d)->frame_changed = 1))
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381
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382 #define MARK_DEVICE_WINDOWS_CHANGED(d) \
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383 ((void) (windows_changed = (d)->windows_changed = 1))
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384
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385 #define MARK_DEVICE_WINDOWS_STRUCTURE_CHANGED(d) \
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386 ((void) (windows_structure_changed = (d)->windows_structure_changed = 1))
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387
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388 /* This turns out to be used heavily so we make it a macro to make it
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389 inline. Also, the majority of the time the object will turn out to
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390 be a window so we move it from being checked last to being checked
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391 first. */
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392 #define DFW_DEVICE(obj) \
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393 (WINDOWP (obj) ? WINDOW_DEVICE (XWINDOW (obj)) \
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394 : (FRAMEP (obj) ? FRAME_DEVICE (XFRAME (obj)) \
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395 : (DEVICEP (obj) ? obj \
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396 : Qnil)))
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397
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398 /* NO_BREAK means that "break" doesn't do what you think it does!
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399 Use goto instead. "continue" is OK, though. */
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400 #define DEVICE_LOOP_NO_BREAK(devcons, concons) \
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401 CONSOLE_LOOP (concons) \
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402 CONSOLE_DEVICE_LOOP (devcons, XCONSOLE (XCAR (concons)))
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403 #define DEVICE_FRAME_LOOP(frmcons, d) \
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404 LIST_LOOP (frmcons, DEVICE_FRAME_LIST (d))
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405 #define CONSOLE_FRAME_LOOP_NO_BREAK(frmcons, devcons, con) \
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406 CONSOLE_DEVICE_LOOP (devcons, con) \
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407 DEVICE_FRAME_LOOP (frmcons, XDEVICE (XCAR (devcons)))
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408
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409 void select_device_1 (Lisp_Object);
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410 struct device *decode_device (Lisp_Object);
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411 void handle_asynch_device_change (void);
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412 void call_critical_lisp_code (struct device *d, Lisp_Object function,
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413 Lisp_Object object);
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414 void delete_device_internal (struct device *d, int force,
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415 int called_from_delete_console,
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416 int from_io_error);
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417 void io_error_delete_device (Lisp_Object device);
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418 Lisp_Object find_nonminibuffer_frame_not_on_device (Lisp_Object device);
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419 void set_device_selected_frame (struct device *d, Lisp_Object frame);
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420 Lisp_Object domain_device_type (Lisp_Object domain);
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421 int window_system_pixelated_geometry (Lisp_Object domain);
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422
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423 #endif /* _XEMACS_DEVICE_H_ */
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