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428
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1 /* mswindows selection processing for XEmacs
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2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
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800
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3 Copyright (C) 2000, 2001, 2002 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not synched with FSF. */
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23
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771
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24 /* This file Mule-ized 7-00?? Needs some Unicode review. --ben */
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25
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428
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26 /* Authorship:
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27
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28 Written by Kevin Gallo for FSF Emacs.
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29 Rewritten for mswindows by Jonathan Harris, December 1997 for 21.0.
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771
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30 Rewritten April 2000 by Ben Wing -- support device methods, Mule-ize.
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442
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31 Hacked by Alastair Houghton, July 2000 for enhanced clipboard support.
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32 */
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428
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33
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34 #include <config.h>
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35 #include "lisp.h"
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771
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36 #include "buffer.h"
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430
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37 #include "frame.h"
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428
|
38 #include "select.h"
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442
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39 #include "opaque.h"
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40 #include "file-coding.h"
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428
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41
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42 #include "console-msw.h"
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43
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771
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44 static int in_own_selection;
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45
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442
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46 /* A list of handles that we must release. Not accessible from Lisp. */
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47 static Lisp_Object Vhandle_alist;
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48
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771
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49 void
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50 mswindows_handle_destroyclipboard (void)
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|
51 {
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52 /* We also receive a destroy message when we call EmptyClipboard() and
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53 we already own it. In this case we don't want to call
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54 handle_selection_clear() because it will remove what we're trying
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55 to add! */
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56 if (!in_own_selection)
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57 {
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58 /* We own the clipboard and someone else wants it. Delete our
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59 cached copy of the clipboard contents so we'll ask for it from
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60 Windows again when someone does a paste, and destroy any memory
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61 objects we hold on the clipboard that are not in the list of types
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62 that Windows will delete itself. */
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63 mswindows_destroy_selection (QCLIPBOARD);
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64 handle_selection_clear (QCLIPBOARD);
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65 }
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66 }
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67
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68 static int
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69 mswindows_empty_clipboard (void)
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70 {
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71 int retval;
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72
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73 in_own_selection = 1;
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74 retval = EmptyClipboard ();
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75 in_own_selection = 0;
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76 return retval;
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|
77 }
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78
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442
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79 /* Test if this is an X symbol that we understand */
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80 static int
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81 x_sym_p (Lisp_Object value)
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82 {
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83 if (NILP (value) || INTP (value))
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84 return 0;
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85
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86 /* Check for some of the X symbols */
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87 if (EQ (value, QSTRING)) return 1;
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88 if (EQ (value, QTEXT)) return 1;
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89 if (EQ (value, QCOMPOUND_TEXT)) return 1;
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90
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91 return 0;
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92 }
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93
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94 /* This converts a Lisp symbol to an MS-Windows clipboard format.
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95 We have symbols for all predefined clipboard formats, but that
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96 doesn't mean we support them all ;-)
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97 The name of this function is actually a lie - it also knows about
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98 integers and strings... */
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99 static UINT
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100 symbol_to_ms_cf (Lisp_Object value)
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428
|
101 {
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442
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102 /* If it's NIL, we're in trouble. */
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103 if (NILP (value)) return 0;
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104
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105 /* If it's an integer, assume it's a format ID */
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106 if (INTP (value)) return (UINT) (XINT (value));
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107
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108 /* If it's a string, register the format(!) */
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109 if (STRINGP (value))
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|
771
|
110 {
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111 Extbyte *valext;
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112 LISP_STRING_TO_TSTR (value, valext);
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113 return qxeRegisterClipboardFormat (valext);
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114 }
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442
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115
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116 /* Check for Windows clipboard format symbols */
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117 if (EQ (value, QCF_TEXT)) return CF_TEXT;
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118 if (EQ (value, QCF_BITMAP)) return CF_BITMAP;
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119 if (EQ (value, QCF_METAFILEPICT)) return CF_METAFILEPICT;
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120 if (EQ (value, QCF_SYLK)) return CF_SYLK;
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121 if (EQ (value, QCF_DIF)) return CF_DIF;
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122 if (EQ (value, QCF_TIFF)) return CF_TIFF;
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123 if (EQ (value, QCF_OEMTEXT)) return CF_OEMTEXT;
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124 if (EQ (value, QCF_DIB)) return CF_DIB;
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125 #ifdef CF_DIBV5
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126 if (EQ (value, QCF_DIBV5)) return CF_DIBV5;
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127 #endif
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128 if (EQ (value, QCF_PALETTE)) return CF_PALETTE;
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129 if (EQ (value, QCF_PENDATA)) return CF_PENDATA;
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130 if (EQ (value, QCF_RIFF)) return CF_RIFF;
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131 if (EQ (value, QCF_WAVE)) return CF_WAVE;
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132 if (EQ (value, QCF_UNICODETEXT)) return CF_UNICODETEXT;
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133 if (EQ (value, QCF_ENHMETAFILE)) return CF_ENHMETAFILE;
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134 if (EQ (value, QCF_HDROP)) return CF_HDROP;
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135 if (EQ (value, QCF_LOCALE)) return CF_LOCALE;
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136 if (EQ (value, QCF_OWNERDISPLAY)) return CF_OWNERDISPLAY;
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137 if (EQ (value, QCF_DSPTEXT)) return CF_DSPTEXT;
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138 if (EQ (value, QCF_DSPBITMAP)) return CF_DSPBITMAP;
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139 if (EQ (value, QCF_DSPMETAFILEPICT)) return CF_DSPMETAFILEPICT;
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|
140 if (EQ (value, QCF_DSPENHMETAFILE)) return CF_DSPENHMETAFILE;
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141
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142 return 0;
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|
143 }
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144
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|
|
145 /* This converts an MS-Windows clipboard format to its corresponding
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146 Lisp symbol, or a Lisp integer otherwise. */
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|
147 static Lisp_Object
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148 ms_cf_to_symbol (UINT format)
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|
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149 {
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|
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150 switch (format)
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151 {
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|
152 case CF_TEXT: return QCF_TEXT;
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153 case CF_BITMAP: return QCF_BITMAP;
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154 case CF_METAFILEPICT: return QCF_METAFILEPICT;
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155 case CF_SYLK: return QCF_SYLK;
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|
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156 case CF_DIF: return QCF_DIF;
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|
157 case CF_TIFF: return QCF_TIFF;
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|
|
158 case CF_OEMTEXT: return QCF_OEMTEXT;
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|
159 case CF_DIB: return QCF_DIB;
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|
160 #ifdef CF_DIBV5
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|
|
161 case CF_DIBV5: return QCF_DIBV5;
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|
|
162 #endif
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|
163 case CF_PALETTE: return QCF_PALETTE;
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164 case CF_PENDATA: return QCF_PENDATA;
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165 case CF_RIFF: return QCF_RIFF;
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166 case CF_WAVE: return QCF_WAVE;
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|
|
167 case CF_UNICODETEXT: return QCF_UNICODETEXT;
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|
168 case CF_ENHMETAFILE: return QCF_ENHMETAFILE;
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|
169 case CF_HDROP: return QCF_HDROP;
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|
|
170 case CF_LOCALE: return QCF_LOCALE;
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|
171 case CF_OWNERDISPLAY: return QCF_OWNERDISPLAY;
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|
|
172 case CF_DSPTEXT: return QCF_DSPTEXT;
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|
|
173 case CF_DSPBITMAP: return QCF_DSPBITMAP;
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|
|
174 case CF_DSPMETAFILEPICT: return QCF_DSPMETAFILEPICT;
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|
|
175 case CF_DSPENHMETAFILE: return QCF_DSPENHMETAFILE;
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|
176 default: return make_int ((int) format);
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|
|
177 }
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|
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178 }
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|
428
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179
|
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442
|
180 /* Test if the specified clipboard format is auto-released by the OS. If
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181 not, we must remember the handle on Vhandle_alist, and free it if
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182 the clipboard is emptied or if we set data with the same format. */
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|
183 static int
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|
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184 cf_is_autofreed (UINT format)
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|
|
185 {
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|
|
186 switch (format)
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|
|
187 {
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|
|
188 /* This list comes from the SDK documentation */
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|
|
189 case CF_DSPENHMETAFILE:
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|
|
190 case CF_DSPMETAFILEPICT:
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|
|
191 case CF_ENHMETAFILE:
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|
|
192 case CF_METAFILEPICT:
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|
|
193 case CF_BITMAP:
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|
|
194 case CF_DSPBITMAP:
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|
|
195 case CF_PALETTE:
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|
|
196 case CF_DIB:
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|
197 #ifdef CF_DIBV5
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|
|
198 case CF_DIBV5:
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|
|
199 #endif
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|
|
200 case CF_DSPTEXT:
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|
|
201 case CF_OEMTEXT:
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|
|
202 case CF_TEXT:
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|
|
203 case CF_UNICODETEXT:
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|
204 return TRUE;
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|
205
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|
|
206 default:
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|
207 return FALSE;
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|
|
208 }
|
|
|
209 }
|
|
|
210
|
|
|
211 /* Do protocol to assert ourself as a selection owner.
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|
|
212
|
|
|
213 Under mswindows, we:
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|
214
|
|
|
215 * Only set the clipboard if (eq selection-name 'CLIPBOARD)
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216
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|
|
217 * Check if an X atom name has been passed. If so, convert to CF_TEXT
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|
|
218 (or CF_UNICODETEXT) remembering to perform LF -> CR-LF conversion.
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|
219
|
|
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220 * Otherwise assume the data is formatted appropriately for the data type
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|
|
221 that was passed.
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222
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|
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223 Then set the clipboard as necessary.
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|
|
224 */
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|
|
225 static Lisp_Object
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|
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226 mswindows_own_selection (Lisp_Object selection_name,
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|
|
227 Lisp_Object selection_value,
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|
|
228 Lisp_Object how_to_add,
|
|
456
|
229 Lisp_Object selection_type,
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|
|
230 int owned_p /* Not used */)
|
|
442
|
231 {
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|
|
232 HGLOBAL hValue = NULL;
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|
|
233 UINT cfType;
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|
|
234 int is_X_type = FALSE;
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|
|
235 Lisp_Object cfObject;
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|
|
236 Lisp_Object data = Qnil;
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|
|
237 int size;
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|
|
238 void *src, *dst;
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|
|
239 struct frame *f = NULL;
|
|
428
|
240
|
|
442
|
241 /* Only continue if we're trying to set the clipboard - mswindows doesn't
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|
|
242 use the same selection model as X */
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|
|
243 if (!EQ (selection_name, QCLIPBOARD))
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|
|
244 return Qnil;
|
|
|
245
|
|
|
246 /* If this is one of the X-style atom name symbols, or NIL, convert it
|
|
|
247 as appropriate */
|
|
|
248 if (NILP (selection_type) || x_sym_p (selection_type))
|
|
|
249 {
|
|
|
250 /* Should COMPOUND_TEXT map to CF_UNICODETEXT? */
|
|
771
|
251 if (XEUNICODE_P)
|
|
|
252 {
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|
|
253 cfType = CF_UNICODETEXT;
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|
|
254 cfObject = QCF_UNICODETEXT;
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|
|
255 }
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|
|
256 else
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|
|
257 {
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|
|
258 cfType = CF_TEXT;
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|
|
259 cfObject = QCF_TEXT;
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|
|
260 }
|
|
442
|
261 is_X_type = TRUE;
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|
|
262 }
|
|
|
263 else
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|
|
264 {
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|
|
265 cfType = symbol_to_ms_cf (selection_type);
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|
|
266
|
|
|
267 /* Only continue if we can figure out a clipboard type */
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|
|
268 if (!cfType)
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|
269 return Qnil;
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|
|
270
|
|
|
271 cfObject = selection_type;
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|
|
272 }
|
|
|
273
|
|
|
274 /* Convert things appropriately */
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|
|
275 data = select_convert_out (selection_name,
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|
|
276 cfObject,
|
|
|
277 selection_value);
|
|
428
|
278
|
|
442
|
279 if (NILP (data))
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|
|
280 return Qnil;
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|
|
281
|
|
|
282 if (CONSP (data))
|
|
|
283 {
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|
|
284 if (!EQ (XCAR (data), cfObject))
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|
|
285 cfType = symbol_to_ms_cf (XCAR (data));
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|
|
286
|
|
|
287 if (!cfType)
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|
|
288 return Qnil;
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|
|
289
|
|
|
290 data = XCDR (data);
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|
|
291 }
|
|
|
292
|
|
|
293 /* We support opaque or string values, but we only mention string
|
|
771
|
294 values for now...
|
|
|
295 #### where do the opaque objects come from? currently they're not
|
|
|
296 allowed to be exported to the lisp level! */
|
|
442
|
297 if (!OPAQUEP (data)
|
|
|
298 && !STRINGP (data))
|
|
|
299 return Qnil;
|
|
|
300
|
|
|
301 /* Find the frame */
|
|
430
|
302 f = selected_frame ();
|
|
442
|
303
|
|
|
304 /* Open the clipboard */
|
|
430
|
305 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f)))
|
|
428
|
306 return Qnil;
|
|
|
307
|
|
771
|
308 /* Obtain the data */
|
|
|
309 if (OPAQUEP (data))
|
|
|
310 {
|
|
|
311 src = XOPAQUE_DATA (data);
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|
|
312 size = XOPAQUE_SIZE (data);
|
|
|
313 }
|
|
|
314 else
|
|
|
315 /* we do NOT append a zero byte. we don't know whether we're dealing
|
|
|
316 with regular text, unicode text, binary data, etc. */
|
|
851
|
317 TO_EXTERNAL_FORMAT (LISP_STRING, data, MALLOC, (src, size),
|
|
771
|
318 Qbinary);
|
|
|
319
|
|
442
|
320 /* Allocate memory */
|
|
|
321 hValue = GlobalAlloc (GMEM_DDESHARE | GMEM_MOVEABLE, size);
|
|
|
322
|
|
|
323 if (!hValue)
|
|
428
|
324 {
|
|
|
325 CloseClipboard ();
|
|
442
|
326
|
|
851
|
327 xfree (src);
|
|
442
|
328 return Qnil;
|
|
|
329 }
|
|
|
330
|
|
|
331 dst = GlobalLock (hValue);
|
|
|
332
|
|
|
333 if (!dst)
|
|
|
334 {
|
|
|
335 GlobalFree (hValue);
|
|
|
336 CloseClipboard ();
|
|
|
337
|
|
851
|
338 xfree (src);
|
|
428
|
339 return Qnil;
|
|
|
340 }
|
|
442
|
341
|
|
|
342 memcpy (dst, src, size);
|
|
851
|
343 xfree (src);
|
|
442
|
344
|
|
|
345 GlobalUnlock (hValue);
|
|
|
346
|
|
|
347 /* Empty the clipboard if we're replacing everything */
|
|
|
348 if (NILP (how_to_add) || EQ (how_to_add, Qreplace_all))
|
|
428
|
349 {
|
|
771
|
350 if (!mswindows_empty_clipboard ())
|
|
428
|
351 {
|
|
442
|
352 CloseClipboard ();
|
|
|
353 GlobalFree (hValue);
|
|
|
354
|
|
|
355 return Qnil;
|
|
|
356 }
|
|
428
|
357 }
|
|
442
|
358
|
|
|
359 /* Append is currently handled in select.el; perhaps this should change,
|
|
|
360 but it only really makes sense for ordinary text in any case... */
|
|
|
361
|
|
|
362 SetClipboardData (cfType, hValue);
|
|
|
363
|
|
|
364 if (!cf_is_autofreed (cfType))
|
|
|
365 {
|
|
|
366 Lisp_Object alist_elt = Qnil, rest;
|
|
|
367 Lisp_Object cfType_int = make_int (cfType);
|
|
|
368
|
|
|
369 /* First check if there's an element in the alist for this type
|
|
|
370 already. */
|
|
|
371 alist_elt = assq_no_quit (cfType_int, Vhandle_alist);
|
|
|
372
|
|
|
373 /* Add an element to the alist */
|
|
|
374 Vhandle_alist = Fcons (Fcons (cfType_int, make_opaque_ptr (hValue)),
|
|
|
375 Vhandle_alist);
|
|
|
376
|
|
|
377 if (!NILP (alist_elt))
|
|
|
378 {
|
|
|
379 /* Free the original handle */
|
|
|
380 GlobalFree ((HGLOBAL) get_opaque_ptr (XCDR (alist_elt)));
|
|
|
381
|
|
771
|
382 /* Remove the original one (adding first makes life easier,
|
|
|
383 because we don't have to special case this being the
|
|
|
384 first element) */
|
|
442
|
385 for (rest = Vhandle_alist; !NILP (rest); rest = Fcdr (rest))
|
|
|
386 if (EQ (cfType_int, Fcar (XCDR (rest))))
|
|
|
387 {
|
|
|
388 XCDR (rest) = Fcdr (XCDR (rest));
|
|
|
389 break;
|
|
|
390 }
|
|
|
391 }
|
|
|
392 }
|
|
|
393
|
|
428
|
394 CloseClipboard ();
|
|
442
|
395
|
|
|
396 /* #### Should really return a time, though this is because of the
|
|
|
397 X model (by the looks of things) */
|
|
|
398 return Qnil;
|
|
428
|
399 }
|
|
|
400
|
|
|
401 static Lisp_Object
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442
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402 mswindows_available_selection_types (Lisp_Object selection_name)
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403 {
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404 Lisp_Object types = Qnil;
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405 UINT format = 0;
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406 struct frame *f = NULL;
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407
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408 if (!EQ (selection_name, QCLIPBOARD))
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409 return Qnil;
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410
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411 /* Find the frame */
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412 f = selected_frame ();
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413
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414 /* Open the clipboard */
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415 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f)))
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416 return Qnil;
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417
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771
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418 /* [[ ajh - Should there be an unwind-protect handler around this?
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419 It could (well it probably won't, but it's always better to
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420 be safe) run out of memory and leave the clipboard open... ]]
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421 -- xemacs in general makes no provisions for out-of-memory errors;
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422 we will probably just crash. fixing this is a huge amount of work,
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423 so don't bother protecting in this case. --ben */
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442
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424
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425 while ((format = EnumClipboardFormats (format)))
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426 types = Fcons (ms_cf_to_symbol (format), types);
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427
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428 /* Close it */
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429 CloseClipboard ();
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430
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431 return types;
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432 }
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433
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434 static Lisp_Object
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435 mswindows_register_selection_data_type (Lisp_Object type_name)
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428
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436 {
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442
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437 /* Type already checked in select.c */
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771
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438 Extbyte *nameext;
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439 UINT format;
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442
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440
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771
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441 LISP_STRING_TO_TSTR (type_name, nameext);
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442 format = qxeRegisterClipboardFormat (nameext);
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442
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443
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444 if (format)
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445 return make_int ((int) format);
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446 else
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447 return Qnil;
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448 }
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449
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450 static Lisp_Object
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451 mswindows_selection_data_type_name (Lisp_Object type_id)
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452 {
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771
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453 UINT format;
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454 Extbyte *namebuf;
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455 int numchars;
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442
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456
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457 /* If it's an integer, convert to a symbol if appropriate */
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458 if (INTP (type_id))
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459 type_id = ms_cf_to_symbol (XINT (type_id));
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460
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461 /* If this is a symbol, return it */
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462 if (SYMBOLP (type_id))
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463 return type_id;
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464
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465 /* Find the format code */
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466 format = symbol_to_ms_cf (type_id);
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467
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468 if (!format)
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469 return Qnil;
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470
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471 /* Microsoft, stupid Microsoft */
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771
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472 {
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800
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473 int size = 64;
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771
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474 do
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475 {
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800
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476 size *= 2;
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771
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477 namebuf = alloca_extbytes (size * XETCHAR_SIZE);
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478 numchars = qxeGetClipboardFormatName (format, namebuf, size);
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479 }
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480 while (numchars >= size - 1);
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481 }
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442
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482
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483 if (numchars)
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771
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484 return build_tstr_string (namebuf);
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428
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485
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486 return Qnil;
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487 }
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488
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442
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489 static Lisp_Object
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490 mswindows_get_foreign_selection (Lisp_Object selection_symbol,
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491 Lisp_Object target_type)
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428
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492 {
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442
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493 HGLOBAL hValue = NULL;
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494 UINT cfType;
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495 Lisp_Object cfObject = Qnil, ret = Qnil, value = Qnil;
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496 int is_X_type = FALSE;
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497 int size;
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498 void *data;
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499 struct frame *f = NULL;
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500 struct gcpro gcpro1;
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501
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502 /* Only continue if we're trying to read the clipboard - mswindows doesn't
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503 use the same selection model as X */
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504 if (!EQ (selection_symbol, QCLIPBOARD))
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505 return Qnil;
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428
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506
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442
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507 /* If this is one of the X-style atom name symbols, or NIL, convert it
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508 as appropriate */
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509 if (NILP (target_type) || x_sym_p (target_type))
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510 {
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511 /* Should COMPOUND_TEXT map to CF_UNICODETEXT? */
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771
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512 if (XEUNICODE_P)
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513 {
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514 cfType = CF_UNICODETEXT;
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515 cfObject = QCF_UNICODETEXT;
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516 }
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517 else
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518 {
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519 cfType = CF_TEXT;
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520 cfObject = QCF_TEXT;
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521 }
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442
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522 is_X_type = TRUE;
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523 }
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524 else
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525 {
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526 cfType = symbol_to_ms_cf (target_type);
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527
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528 /* Only continue if we can figure out a clipboard type */
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529 if (!cfType)
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530 return Qnil;
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531
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532 cfObject = ms_cf_to_symbol (cfType);
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533 }
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534
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535 /* Find the frame */
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536 f = selected_frame ();
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|
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537
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538 /* Open the clipboard */
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539 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f)))
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428
|
540 return Qnil;
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541
|
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442
|
542 /* Read the clipboard */
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543 hValue = GetClipboardData (cfType);
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544
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|
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545 if (!hValue)
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428
|
546 {
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442
|
547 CloseClipboard ();
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428
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548
|
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442
|
549 return Qnil;
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550 }
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428
|
551
|
|
442
|
552 /* Find the data */
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|
553 size = GlobalSize (hValue);
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|
554 data = GlobalLock (hValue);
|
|
428
|
555
|
|
442
|
556 if (!data)
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|
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557 {
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558 CloseClipboard ();
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559
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|
|
560 return Qnil;
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|
428
|
561 }
|
|
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562
|
|
442
|
563 /* Place it in a Lisp string */
|
|
771
|
564 ret = make_ext_string ((Extbyte *) data, size, Qbinary);
|
|
442
|
565
|
|
|
566 GlobalUnlock (data);
|
|
428
|
567 CloseClipboard ();
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|
|
568
|
|
442
|
569 GCPRO1 (ret);
|
|
428
|
570
|
|
442
|
571 /* Convert this to the appropriate type. If we can't find anything,
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|
|
572 then we return a cons of the form (DATA-TYPE . STRING), where the
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573 string contains the raw binary data. */
|
|
|
574 value = select_convert_in (selection_symbol,
|
|
|
575 cfObject,
|
|
|
576 ret);
|
|
428
|
577
|
|
442
|
578 UNGCPRO;
|
|
430
|
579
|
|
442
|
580 if (NILP (value))
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|
|
581 return Fcons (cfObject, ret);
|
|
|
582 else
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|
|
583 return value;
|
|
428
|
584 }
|
|
|
585
|
|
|
586 static void
|
|
|
587 mswindows_disown_selection (Lisp_Object selection, Lisp_Object timeval)
|
|
|
588 {
|
|
|
589 if (EQ (selection, QCLIPBOARD))
|
|
442
|
590 {
|
|
|
591 BOOL success = OpenClipboard (NULL);
|
|
|
592 if (success)
|
|
|
593 {
|
|
771
|
594 /* the caller calls handle_selection_clear(). */
|
|
|
595 success = mswindows_empty_clipboard ();
|
|
442
|
596 /* Close it regardless of whether empty worked. */
|
|
|
597 if (!CloseClipboard ())
|
|
|
598 success = FALSE;
|
|
|
599 }
|
|
|
600
|
|
|
601 /* #### return success ? Qt : Qnil; */
|
|
|
602 }
|
|
|
603 }
|
|
|
604
|
|
|
605 void
|
|
|
606 mswindows_destroy_selection (Lisp_Object selection)
|
|
|
607 {
|
|
|
608 /* Do nothing if this isn't for the clipboard. */
|
|
|
609 if (!EQ (selection, QCLIPBOARD))
|
|
|
610 return;
|
|
|
611
|
|
|
612 /* Right. We need to delete everything in Vhandle_alist. */
|
|
|
613 {
|
|
|
614 LIST_LOOP_2 (elt, Vhandle_alist)
|
|
|
615 GlobalFree ((HGLOBAL) get_opaque_ptr (XCDR (elt)));
|
|
|
616 }
|
|
|
617
|
|
|
618 Vhandle_alist = Qnil;
|
|
|
619 }
|
|
|
620
|
|
|
621 static Lisp_Object
|
|
|
622 mswindows_selection_exists_p (Lisp_Object selection,
|
|
|
623 Lisp_Object selection_type)
|
|
|
624 {
|
|
|
625 /* We used to be picky about the format, but now we support anything. */
|
|
|
626 if (EQ (selection, QCLIPBOARD))
|
|
|
627 {
|
|
|
628 if (NILP (selection_type))
|
|
|
629 return CountClipboardFormats () ? Qt : Qnil;
|
|
|
630 else
|
|
|
631 return IsClipboardFormatAvailable (symbol_to_ms_cf (selection_type))
|
|
|
632 ? Qt : Qnil;
|
|
|
633 }
|
|
|
634 else
|
|
|
635 return Qnil;
|
|
428
|
636 }
|
|
|
637
|
|
|
638
|
|
|
639 /************************************************************************/
|
|
|
640 /* initialization */
|
|
|
641 /************************************************************************/
|
|
|
642
|
|
|
643 void
|
|
|
644 console_type_create_select_mswindows (void)
|
|
|
645 {
|
|
|
646 CONSOLE_HAS_METHOD (mswindows, own_selection);
|
|
|
647 CONSOLE_HAS_METHOD (mswindows, disown_selection);
|
|
442
|
648 CONSOLE_HAS_METHOD (mswindows, selection_exists_p);
|
|
428
|
649 CONSOLE_HAS_METHOD (mswindows, get_foreign_selection);
|
|
442
|
650 CONSOLE_HAS_METHOD (mswindows, available_selection_types);
|
|
|
651 CONSOLE_HAS_METHOD (mswindows, register_selection_data_type);
|
|
|
652 CONSOLE_HAS_METHOD (mswindows, selection_data_type_name);
|
|
428
|
653 }
|
|
|
654
|
|
|
655 void
|
|
|
656 syms_of_select_mswindows (void)
|
|
|
657 {
|
|
|
658 }
|
|
|
659
|
|
|
660 void
|
|
|
661 vars_of_select_mswindows (void)
|
|
|
662 {
|
|
442
|
663 /* Initialise Vhandle_alist */
|
|
|
664 Vhandle_alist = Qnil;
|
|
|
665 staticpro (&Vhandle_alist);
|
|
428
|
666 }
|
|
771
|
667
|
|
|
668 void
|
|
|
669 init_select_mswindows (void)
|
|
|
670 {
|
|
|
671 /* Reinitialise Vhandle_alist */
|
|
|
672 /* #### Why do we need to do this? Somehow I added this. --ben */
|
|
|
673 Vhandle_alist = Qnil;
|
|
|
674 }
|
