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213
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1 /* The mswindows event_stream interface.
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2 Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Sun Microsystems, Inc.
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4 Copyright (C) 1996 Ben Wing.
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5 Copyright (C) 1997 Jonathan Harris.
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6
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7 This file is part of XEmacs.
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8
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9 XEmacs is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option) any
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12 later version.
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13
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 Boston, MA 02111-1307, USA. */
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23
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24 /* Synched up with: Not in FSF. */
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25
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26 /* Authorship:
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27
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28 Ultimately based on FSF.
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29 Rewritten by Ben Wing.
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30 Rewritten for mswindows by Jonathan Harris, November 1997 for 20.4.
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31 */
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32
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33 #include <config.h>
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34 #include "lisp.h"
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35
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36 #include "device.h"
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37 #include "console-msw.h"
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38 #include "events.h"
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39 #include "frame.h"
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40 #include "process.h"
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41
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42 #include "sysproc.h"
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43 #include "syswait.h"
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44 #include "systime.h"
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45
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46 #include "event-msw.h"
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47
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48 static struct event_stream *mswindows_event_stream;
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223
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49
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50 /*
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51 * Two separate queues, for efficiency, one (_u_) for user events, and
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52 * another (_s_) for non-user ones. We always return events out of the
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53 * first one until it is empty and only then proceed with the second
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54 * one.
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55 */
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56 static Lisp_Object mswindows_u_dispatch_event_queue, mswindows_u_dispatch_event_queue_tail;
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57 static Lisp_Object mswindows_s_dispatch_event_queue, mswindows_s_dispatch_event_queue_tail;
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213
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58
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59 /*
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60 * List of mswindows waitable handles.
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61 * Apart from the dispatch queue semaphore, all of these handles may be waited
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219
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62 * on multiple times in emacs_mswindows_next_event before being processed and so
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63 * must be manual-reset events.
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213
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64 */
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65 static HANDLE mswindows_waitable[MAX_WAITABLE];
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66
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67 /* random emacs info associated with each of the wait handles */
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68 static mswindows_waitable_info_type mswindows_waitable_info[MAX_WAITABLE];
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69
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223
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70 /* Count of quit chars currently in the queue */
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71 /* Incremented in WM_CHAR handler in msw-proc.c
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72 Decremented in mswindows_dequeue_dispatch_event() */
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73 int mswindows_quit_chars_count = 0;
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74
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75 /* These are Lisp integers; see DEFVARS in this file for description. */
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76 int mswindows_dynamic_frame_resize;
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77 int mswindows_num_mouse_buttons;
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78 int mswindows_button2_max_skew_x;
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79 int mswindows_button2_max_skew_y;
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80 int mswindows_button2_chord_time;
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81
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219
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82 /* Number of wait handles */
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83 static mswindows_waitable_count=0;
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84
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223
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85 static int
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86 mswindows_user_event_p (struct Lisp_Event* sevt)
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87 {
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88 return (sevt->event_type == key_press_event
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89 || sevt->event_type == button_press_event
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225
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90 || sevt->event_type == button_release_event);
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223
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91 }
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92
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219
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93 /*
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223
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94 * Add an emacs event to the proper dispatch queue
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219
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95 */
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213
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96 void
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97 mswindows_enqueue_dispatch_event (Lisp_Object event)
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98 {
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223
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99 int user_p = mswindows_user_event_p (XEVENT(event));
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100 enqueue_event (event,
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101 user_p ? &mswindows_u_dispatch_event_queue :
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102 &mswindows_s_dispatch_event_queue,
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103 user_p ? &mswindows_u_dispatch_event_queue_tail :
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104 &mswindows_s_dispatch_event_queue_tail);
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105
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106 /* This one does not go to window procedure, hence does not
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107 generate XM_BUMPQUEUE magic event! */
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108 PostMessage (NULL, XM_BUMPQUEUE, 0, 0);
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213
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109 }
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110
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219
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111 /*
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223
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112 * Remove and return the first emacs event on the dispatch queue.
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113 * Give a preference to user events over non-user ones.
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219
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114 */
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213
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115 static Lisp_Object
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223
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116 mswindows_dequeue_dispatch_event ()
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213
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117 {
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118 Lisp_Object event;
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223
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119 struct Lisp_Event* sevt;
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120
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121 assert (!NILP(mswindows_u_dispatch_event_queue) ||
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122 !NILP(mswindows_s_dispatch_event_queue));
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123
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124 event = dequeue_event (
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125 NILP(mswindows_u_dispatch_event_queue) ?
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126 &mswindows_s_dispatch_event_queue :
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127 &mswindows_u_dispatch_event_queue,
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128 NILP(mswindows_u_dispatch_event_queue) ?
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129 &mswindows_s_dispatch_event_queue_tail :
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130 &mswindows_u_dispatch_event_queue_tail);
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131
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132 sevt = XEVENT(event);
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133 if (sevt->event_type == key_press_event
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134 && (sevt->event.key.modifiers & FAKE_MOD_QUIT))
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135 {
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136 sevt->event.key.modifiers &= ~FAKE_MOD_QUIT;
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137 --mswindows_quit_chars_count;
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138 }
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139
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213
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140 return event;
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141 }
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142
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143 /*
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219
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144 * Remove and return the first emacs event on the dispatch queue that matches
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223
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145 * the supplied event
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146 * Timeout event matches if interval_id equals to that of the given event.
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147 * Keypress event matches if logical AND between modifiers bitmask of the
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148 * event in the queue and that of the given event is non-zero
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149 * For all other event types, this function asserts.
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219
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150 */
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223
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151
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219
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152 Lisp_Object
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223
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153 mswindows_cancel_dispatch_event (struct Lisp_Event* match)
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219
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154 {
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155 Lisp_Object event;
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156 Lisp_Object previous_event=Qnil;
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223
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157 int user_p = mswindows_user_event_p (match);
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158 Lisp_Object* head = user_p ? &mswindows_u_dispatch_event_queue :
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159 &mswindows_s_dispatch_event_queue;
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160 Lisp_Object* tail = user_p ? &mswindows_u_dispatch_event_queue_tail :
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161 &mswindows_s_dispatch_event_queue_tail;
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219
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162
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223
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163 assert (match->event_type == timeout_event
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164 || match->event_type == key_press_event);
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219
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165
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223
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166 EVENT_CHAIN_LOOP (event, *head)
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167 {
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168 int found = 1;
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169 if (XEVENT_TYPE (event) != match->event_type)
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170 found = 0;
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171 if (found && match->event_type == timeout_event
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172 && (XEVENT(event)->event.timeout.interval_id !=
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173 match->event.timeout.interval_id))
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174 found = 0;
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175 if (found && match->event_type == key_press_event
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176 && ((XEVENT(event)->event.key.modifiers &
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177 match->event.key.modifiers) == 0))
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178 found = 0;
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179
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180 if (found)
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181 {
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182 if (NILP (previous_event))
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183 dequeue_event (head, tail);
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184 else
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185 {
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186 XSET_EVENT_NEXT (previous_event, XEVENT_NEXT (event));
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187 if (EQ (*tail, event))
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188 *tail = previous_event;
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189 }
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190
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191 return event;
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192 }
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219
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193 previous_event = event;
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223
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194 }
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219
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195 }
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196
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197 /*
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213
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198 * Find a free waitable slot
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199 */
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200 static int
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201 mswindows_find_free_waitable(void)
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202 {
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203 int i;
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204 for (i=0; i<mswindows_waitable_count; i++)
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205 if (mswindows_waitable_info[i].type == mswindows_waitable_type_none)
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206 return i;
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207 assert (mswindows_waitable_count < MAX_WAITABLE);
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208 return mswindows_waitable_count++;
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209 }
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210
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211 /*
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212 * Create a new waitable using the type and data passed in by the info structure
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213 * Returns a pointer to the info associated with the assigned waitable object
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214 */
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215 mswindows_waitable_info_type *
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216 mswindows_add_waitable(mswindows_waitable_info_type *info)
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217 {
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218 int waitable;
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219
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220 switch (info->type)
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221 {
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222 case mswindows_waitable_type_dispatch:
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223
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223 assert (0); /* kkm - should not get here */
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213
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224 /* Can only have one waitable for the dispatch queue, and it's the first one */
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225 assert (mswindows_waitable_count++ == 0);
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226 waitable=0;
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223
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227 // InitializeCriticalSection(&mswindows_dispatch_crit);
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213
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228 assert (mswindows_waitable[0] = CreateSemaphore (NULL, 0, 0x7fffffff, NULL));
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229 return mswindows_waitable_info+0;
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230
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231 default:
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232 assert(0);
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233 }
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234 mswindows_waitable_info[waitable].type = info->type;
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235 return mswindows_waitable_info+waitable;
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236 }
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237
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238 /*
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239 * Remove a waitable using the type and data passed in by the info structure.
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240 */
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241 void
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242 mswindows_remove_waitable(mswindows_waitable_info_type *info)
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243 {
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244 int waitable;
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245
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246 switch (info->type)
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247 {
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248
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249 default:
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250 assert(0);
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251 }
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252
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253 CloseHandle(mswindows_waitable[waitable]);
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254 mswindows_waitable[waitable] = 0;
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255 mswindows_waitable_info[waitable].type = mswindows_waitable_type_none;
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256 if (waitable == mswindows_waitable_count-1)
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257 --mswindows_waitable_count;
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258 }
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259
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223
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260 /*
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261 * Callback procedure for synchronous timer messages
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262 */
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263 static void CALLBACK
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264 mswindows_wm_timer_callback (HWND hwnd, UINT umsg, UINT id_timer, DWORD dwtime)
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265 {
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266 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
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267 struct Lisp_Event *event = XEVENT (emacs_event);
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268
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269 KillTimer (NULL, id_timer);
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270
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271 event->channel = Qnil;
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272 event->timestamp = dwtime;
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273 event->event_type = timeout_event;
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274 event->event.timeout.interval_id = id_timer;
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275
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276 mswindows_enqueue_dispatch_event (emacs_event);
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277 }
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278
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279 static void
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280 mswindows_drain_windows_queue ()
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281 {
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282 MSG msg;
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283 while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
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284 DispatchMessage (&msg);
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285 }
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286
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287 /*
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288 * This drains the event queue and fills up two internal queues until
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289 * an event of a type specified by USER_P is retrieved.
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290 *
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291 * If user_p, then the function drains until the first user event, or
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292 * the first non-user event if there no user events. Otherwise, If
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293 * not user_p, it does not give preference to user events.
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294 *
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295 * If badly_p, then the function does not return until an event is
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296 * available.
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297 *
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298 * The code does not rely on MsgWaitForMultipleObjects preference for
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299 * messages over waitable handles.
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300 *
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301 * Used by emacs_mswindows_event_pending_p and emacs_mswindows_next_event
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302 */
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303 static void
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304 mswindows_need_event (int user_p, int badly_p)
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305 {
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306 int active;
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307
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308 /* Have to drain Windows message queue first, otherwise, we may miss
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309 quit char when called from quit_p */
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310 mswindows_drain_windows_queue ();
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311
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312 while (NILP (mswindows_u_dispatch_event_queue) &&
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313 (user_p || NILP (mswindows_s_dispatch_event_queue)))
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314 {
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315 /* If we already have an event, we've got someting to return - no wait! */
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316 if (!NILP (mswindows_u_dispatch_event_queue)
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317 || !NILP (mswindows_s_dispatch_event_queue))
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318 badly_p = 0;
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319
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320 /* Now try getting a message */
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321 active = MsgWaitForMultipleObjects (mswindows_waitable_count,
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322 mswindows_waitable,
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323 FALSE, badly_p ? INFINITE : 0,
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324 QS_ALLINPUT);
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325
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326 /* This will assert if handle being waited for becomes abandoned.
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327 Not the case currently tho */
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328 assert ((!badly_p && active == WAIT_TIMEOUT) ||
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329 (active >= WAIT_OBJECT_0 &&
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330 active <= WAIT_OBJECT_0 + mswindows_waitable_count));
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331
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332 if (active == WAIT_TIMEOUT)
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333 {
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334 /* No luck trying - just return what we've already got */
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335 return;
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336 }
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337 else if (active == WAIT_OBJECT_0 + mswindows_waitable_count)
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338 {
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339 /* Got your message, thanks */
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340 mswindows_drain_windows_queue ();
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341 }
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342 else
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343 {
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344 /* XXX FIXME: We should do some kind of round-robin scheme to ensure fairness */
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345 int waitable = active - WAIT_OBJECT_0;
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346 mswindows_waitable_info_type *info = mswindows_waitable_info + waitable;
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347
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348 switch (info->type)
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349 {
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350 /* XXX FIXME: Should enque subprocess event here so that it is not lost */
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351 default:
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352 assert(0);
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353 }
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354 }
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355 } /* while */
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356
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357 return;
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358 }
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359
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213
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360
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361 /************************************************************************/
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362 /* methods */
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363 /************************************************************************/
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364
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365 static int
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366 emacs_mswindows_add_timeout (EMACS_TIME thyme)
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367 {
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223
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368 int milliseconds;
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213
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369 EMACS_TIME current_time;
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370 EMACS_GET_TIME (current_time);
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371 EMACS_SUB_TIME (thyme, thyme, current_time);
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223
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372 milliseconds = EMACS_SECS (thyme) * 1000 +
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373 (EMACS_USECS (thyme) + 500) / 1000;
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213
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374 if (milliseconds < 1)
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375 milliseconds = 1;
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223
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376 return SetTimer (NULL, 0, milliseconds, mswindows_wm_timer_callback);
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213
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377 }
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378
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379 static void
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380 emacs_mswindows_remove_timeout (int id)
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381 {
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223
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382 struct Lisp_Event match_against;
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383 Lisp_Object emacs_event;
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384
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385 KillTimer (NULL, id);
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386
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387 /* If there is a dispatch event generated by this
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388 timeout in the queue, we have to remove it too. */
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389 match_against.event_type = timeout_event;
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390 match_against.event.timeout.interval_id = id;
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391 emacs_event = mswindows_cancel_dispatch_event (&match_against);
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392 if (!NILP (emacs_event))
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393 Fdeallocate_event(emacs_event);
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213
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394 }
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395
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219
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396 /* If `user_p' is false, then return whether there are any win32, timeout,
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|
|
397 * or subprocess events pending (that is, whether
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398 * emacs_mswindows_next_event() would return immediately without blocking).
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399 *
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|
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400 * if `user_p' is true, then return whether there are any *user generated*
|
|
|
401 * events available (that is, whether there are keyboard or mouse-click
|
|
|
402 * events ready to be read). This also implies that
|
|
|
403 * emacs_mswindows_next_event() would not block.
|
|
|
404 */
|
|
213
|
405 static int
|
|
|
406 emacs_mswindows_event_pending_p (int user_p)
|
|
|
407 {
|
|
223
|
408 mswindows_need_event (user_p, 0);
|
|
219
|
409
|
|
223
|
410 return (!NILP (mswindows_u_dispatch_event_queue)
|
|
|
411 || (!user_p && !NILP (mswindows_s_dispatch_event_queue)));
|
|
213
|
412 }
|
|
|
413
|
|
|
414 /*
|
|
|
415 * Return the next event
|
|
|
416 */
|
|
|
417 static void
|
|
|
418 emacs_mswindows_next_event (struct Lisp_Event *emacs_event)
|
|
|
419 {
|
|
223
|
420 Lisp_Object event, event2;
|
|
|
421
|
|
|
422 /* Give strong preference to user events */
|
|
|
423 mswindows_need_event (1, 1);
|
|
213
|
424
|
|
223
|
425 /* XXX Copied from event-Xt.c */
|
|
|
426 event = mswindows_dequeue_dispatch_event (!NILP(mswindows_u_dispatch_event_queue));
|
|
|
427 XSETEVENT (event2, emacs_event);
|
|
|
428 Fcopy_event (event, event2);
|
|
|
429 Fdeallocate_event (event);
|
|
213
|
430 }
|
|
|
431
|
|
|
432 /*
|
|
|
433 * Handle a magic event off the dispatch queue.
|
|
|
434 */
|
|
|
435 static void
|
|
|
436 emacs_mswindows_handle_magic_event (struct Lisp_Event *emacs_event)
|
|
|
437 {
|
|
|
438 #if 0
|
|
|
439 stderr_out("magic %x, (%d,%d), (%d,%d)\n",
|
|
|
440 EVENT_MSWINDOWS_MAGIC_TYPE(emacs_event),
|
|
|
441 rect->left, rect->top, rect->right, rect->bottom);
|
|
|
442 #endif
|
|
|
443 switch (EVENT_MSWINDOWS_MAGIC_TYPE(emacs_event))
|
|
|
444 {
|
|
|
445 case WM_SETFOCUS:
|
|
|
446 case WM_KILLFOCUS:
|
|
|
447 {
|
|
223
|
448 Lisp_Object frame = EVENT_CHANNEL (emacs_event);
|
|
|
449 struct frame *f = XFRAME (frame);
|
|
213
|
450 int in_p = (EVENT_MSWINDOWS_MAGIC_TYPE(emacs_event) == WM_SETFOCUS);
|
|
|
451 Lisp_Object conser;
|
|
223
|
452
|
|
213
|
453 /* struct gcpro gcpro1; */
|
|
|
454
|
|
|
455 /* Clear sticky modifiers here (if we had any) */
|
|
|
456
|
|
|
457 conser = Fcons (frame, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil));
|
|
|
458 /* GCPRO1 (conser); XXX Not necessary? */
|
|
|
459 emacs_handle_focus_change_preliminary (conser);
|
|
|
460 /* Under X the stuff up to here is done in the X event handler.
|
|
|
461 I Don't know why */
|
|
|
462 emacs_handle_focus_change_final (conser);
|
|
|
463 /* UNGCPRO; */
|
|
223
|
464
|
|
213
|
465 }
|
|
|
466 break;
|
|
|
467
|
|
223
|
468 case XM_BUMPQUEUE:
|
|
|
469 /* This is a nice event, when we're in need to queue *something* */
|
|
|
470 break;
|
|
|
471
|
|
|
472 case XM_MAPFRAME:
|
|
|
473 case XM_UNMAPFRAME:
|
|
|
474 {
|
|
|
475 Lisp_Object frame = EVENT_CHANNEL (emacs_event);
|
|
|
476 va_run_hook_with_args (EVENT_MSWINDOWS_MAGIC_TYPE(emacs_event)
|
|
|
477 == XM_MAPFRAME ?
|
|
|
478 Qmap_frame_hook : Qunmap_frame_hook,
|
|
|
479 1, frame);
|
|
|
480 }
|
|
|
481 break;
|
|
|
482
|
|
|
483 /* XXX What about Enter & Leave */
|
|
213
|
484 #if 0
|
|
|
485 va_run_hook_with_args (in_p ? Qmouse_enter_frame_hook :
|
|
|
486 Qmouse_leave_frame_hook, 1, frame);
|
|
|
487 #endif
|
|
|
488
|
|
|
489 default:
|
|
|
490 assert(0);
|
|
|
491 }
|
|
|
492 }
|
|
|
493
|
|
|
494 static void
|
|
|
495 emacs_mswindows_select_process (struct Lisp_Process *process)
|
|
|
496 {
|
|
|
497 }
|
|
|
498
|
|
|
499 static void
|
|
|
500 emacs_mswindows_unselect_process (struct Lisp_Process *process)
|
|
|
501 {
|
|
|
502 }
|
|
|
503
|
|
|
504 static void
|
|
|
505 emacs_mswindows_select_console (struct console *con)
|
|
|
506 {
|
|
|
507 }
|
|
|
508
|
|
|
509 static void
|
|
|
510 emacs_mswindows_unselect_console (struct console *con)
|
|
|
511 {
|
|
|
512 }
|
|
|
513
|
|
|
514 static void
|
|
|
515 emacs_mswindows_quit_p (void)
|
|
|
516 {
|
|
223
|
517 mswindows_need_event (1, 0);
|
|
|
518
|
|
|
519 if (mswindows_quit_chars_count > 0)
|
|
|
520 {
|
|
|
521 /* Yes there's a hidden one... Throw it away */
|
|
|
522 struct Lisp_Event match_against;
|
|
|
523 Lisp_Object emacs_event;
|
|
|
524
|
|
|
525 match_against.event_type = key_press_event;
|
|
|
526 match_against.event.key.modifiers = FAKE_MOD_QUIT;
|
|
|
527
|
|
|
528 emacs_event = mswindows_cancel_dispatch_event (&match_against);
|
|
|
529 assert (!NILP (emacs_event));
|
|
|
530
|
|
|
531 Vquit_flag = (XEVENT(emacs_event)->event.key.modifiers & MOD_SHIFT
|
|
|
532 ? Qcritical : Qt);
|
|
|
533
|
|
|
534 Fdeallocate_event(emacs_event);
|
|
|
535 --mswindows_quit_chars_count;
|
|
|
536 }
|
|
213
|
537 }
|
|
|
538
|
|
|
539 /* This is called from GC when a process object is about to be freed.
|
|
|
540 If we've still got pointers to it in this file, we're gonna lose hard.
|
|
|
541 */
|
|
|
542 void
|
|
|
543 debug_process_finalization (struct Lisp_Process *p)
|
|
|
544 {
|
|
|
545 #if 0 /* #### */
|
|
|
546 int i;
|
|
|
547 int infd, outfd;
|
|
|
548 get_process_file_descriptors (p, &infd, &outfd);
|
|
|
549 /* if it still has fds, then it hasn't been killed yet. */
|
|
|
550 assert (infd < 0);
|
|
|
551 assert (outfd < 0);
|
|
|
552 /* Better not still be in the "with input" table; we know it's got no fds. */
|
|
|
553 for (i = 0; i < MAXDESC; i++)
|
|
|
554 {
|
|
|
555 Lisp_Object process = filedesc_fds_with_input [i];
|
|
|
556 assert (!PROCESSP (process) || XPROCESS (process) != p);
|
|
|
557 }
|
|
|
558 #endif
|
|
|
559 }
|
|
|
560
|
|
|
561 /************************************************************************/
|
|
|
562 /* initialization */
|
|
|
563 /************************************************************************/
|
|
|
564
|
|
|
565 void
|
|
|
566 vars_of_event_mswindows (void)
|
|
|
567 {
|
|
223
|
568 mswindows_u_dispatch_event_queue = Qnil;
|
|
|
569 staticpro (&mswindows_u_dispatch_event_queue);
|
|
|
570 mswindows_u_dispatch_event_queue_tail = Qnil;
|
|
|
571
|
|
|
572 mswindows_s_dispatch_event_queue = Qnil;
|
|
|
573 staticpro (&mswindows_s_dispatch_event_queue);
|
|
|
574 mswindows_s_dispatch_event_queue_tail = Qnil;
|
|
213
|
575
|
|
|
576 mswindows_event_stream = xnew (struct event_stream);
|
|
|
577
|
|
|
578 mswindows_event_stream->event_pending_p = emacs_mswindows_event_pending_p;
|
|
223
|
579 mswindows_event_stream->next_event_cb = emacs_mswindows_next_event;
|
|
213
|
580 mswindows_event_stream->handle_magic_event_cb = emacs_mswindows_handle_magic_event;
|
|
|
581 mswindows_event_stream->add_timeout_cb = emacs_mswindows_add_timeout;
|
|
|
582 mswindows_event_stream->remove_timeout_cb = emacs_mswindows_remove_timeout;
|
|
|
583 mswindows_event_stream->select_console_cb = emacs_mswindows_select_console;
|
|
223
|
584 mswindows_event_stream->unselect_console_cb = emacs_mswindows_unselect_console;
|
|
213
|
585 mswindows_event_stream->select_process_cb = emacs_mswindows_select_process;
|
|
223
|
586 mswindows_event_stream->unselect_process_cb = emacs_mswindows_unselect_process;
|
|
213
|
587 mswindows_event_stream->quit_p_cb = emacs_mswindows_quit_p;
|
|
223
|
588
|
|
225
|
589 DEFVAR_BOOL ("mswindows-dynamic-frame-resize", &mswindows_dynamic_frame_resize /*
|
|
223
|
590 *Controls redrawing frame contents during mouse-drag or keyboard resize
|
|
|
591 operation. When non-nil, the frame is redrawn while being resized. When
|
|
|
592 nil, frame is not redrawn, and exposed areas are filled with default
|
|
|
593 MDI application background color. Note that this option only has effect
|
|
|
594 if "Show window contents while dragging" is on in system Display/Plus!
|
|
|
595 settings.
|
|
|
596 Default is t on fast machines, nil on slow.
|
|
|
597 */ );
|
|
|
598
|
|
|
599 /* The description copied verbatim from nt-emacs. (C) Geoff Voelker */
|
|
225
|
600 DEFVAR_INT ("mswindows-mouse-button-tolerance", &mswindows_button2_chord_time /*
|
|
223
|
601 *Analogue of double click interval for faking middle mouse events.
|
|
|
602 The value is the minimum time in milliseconds that must elapse between
|
|
|
603 left/right button down events before they are considered distinct events.
|
|
|
604 If both mouse buttons are depressed within this interval, a middle mouse
|
|
|
605 button down event is generated instead.
|
|
|
606 If negative or zero, currently set system default is used instead.
|
|
|
607 */ );
|
|
|
608
|
|
|
609 /* The description copied verbatim from nt-emacs. (C) Geoff Voelker */
|
|
225
|
610 DEFVAR_INT ("mswindows-num-mouse-buttons", &mswindows_num_mouse_buttons /*
|
|
223
|
611 Number of physical mouse buttons.
|
|
|
612 */ );
|
|
|
613
|
|
225
|
614 DEFVAR_INT ("mswindows-mouse-button-max-skew-x", &mswindows_button2_max_skew_x /*
|
|
223
|
615 *Maximum horizontal distance in pixels between points in which left and
|
|
|
616 right button clicks occured for them to be translated into single
|
|
|
617 middle button event. Clicks must occur in time not longer than defined
|
|
225
|
618 by the variable mswindows-mouse-button-tolerance.
|
|
223
|
619 If negative or zero, currently set system default is used instead.
|
|
|
620 */ );
|
|
|
621
|
|
225
|
622 DEFVAR_INT ("mswindows-mouse-button-max-skew-y", &mswindows_button2_max_skew_y /*
|
|
223
|
623 *Maximum vertical distance in pixels between points in which left and
|
|
|
624 right button clicks occured for them to be translated into single
|
|
|
625 middle button event. Clicks must occur in time not longer than defined
|
|
225
|
626 by the variable mswindows-mouse-button-tolerance.
|
|
223
|
627 If negative or zero, currently set system default is used instead.
|
|
|
628 */ );
|
|
|
629
|
|
|
630 mswindows_button2_max_skew_x = 0;
|
|
|
631 mswindows_button2_max_skew_y = 0;
|
|
|
632 mswindows_button2_chord_time = 0;
|
|
213
|
633 }
|
|
|
634
|
|
|
635 void
|
|
|
636 syms_of_event_mswindows (void)
|
|
|
637 {
|
|
|
638 }
|
|
|
639
|
|
|
640 void
|
|
|
641 init_event_mswindows_late (void)
|
|
|
642 {
|
|
|
643 event_stream = mswindows_event_stream;
|
|
223
|
644
|
|
|
645 mswindows_dynamic_frame_resize = !GetSystemMetrics (SM_SLOWMACHINE);
|
|
|
646 mswindows_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS);
|
|
213
|
647 }
|
