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1 -*- mode:outline -*-
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2
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3 This file describes various problems that have been encountered in
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4 running XEmacs on Windows 95, 98 and NT. It has been updated for
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5 XEmacs 21.0.
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6
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7 This is the first release of XEmacs on Windows. In testing it has
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8 proved to be extremely stable in general use (but see the gnus and
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9 subprocess problems below), but not all features or packages work
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10 correctly yet.
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11
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12 Use `C-c C-f' to move to the next equal level of outline, and
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13 `C-c C-b' to move to previous equal level. `C-h m' will give more
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14 info about the Outline mode.
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15
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16 Also, Try finding the things you need using one of the search commands
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17 XEmacs provides (e.g. `C-s').
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18
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19 General advice:
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20 Remember your .emacs file! ~\.emacs is your Emacs init file. If
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21 you observe strange problems, invoke XEmacs with the `-q' option
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22 and see if you can repeat the problem.
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23
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24
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25 * Problems with running XEmacs
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26 ==============================
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27 ** Conflicts with FSF NTEmacs
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28
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29 Depending on how it is installed, FSF NTEmacs may setup various EMACS*
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30 variables in your environment. The presence of these variables may
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31 cause XEmacs to fail at startup, cause you to see corrupted
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32 doc-strings, or cause other random problems.
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33
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34 You should remove these variables from your environment. These
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35 variables are not required to run FSF NTEmacs if you start it by
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36 running emacs.bat.
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37
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38 ** XEmacs can't find my .emacs file
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39
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40 XEmacs looks for your .emacs in your "home" directory. XEmacs decides
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41 that your "home" directory is, in order of preference:
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42
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43 - The value of the HOME environment variable, if the variable exists.
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44 - The value of the HOMEDRIVE and HOMEPATH environment variables, if
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45 these variables both exist.
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46 - The directory that XEmacs was started from.
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47
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48 ** XEmacs can't find any packages
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49
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50 XEmacs looks for your packages in subdirectories of a directory which
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51 is set at compile-time, and defaults to C:\Program Files\XEmacs. The
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52 variable configure-package-path holds the actual path that was
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53 compiled into your copy of XEmacs.
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54
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55 The compile-time default location can be overridden by the
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56 EMACSPACKAGEPATH environment variable or by the
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57 SOFTWARE\GNU\XEmacs\EMACSPACKAGEPATH registry entry. You should check
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58 that these variables, if they exist, point to the actual location of
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59 your package tree.
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60
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61 ** XEmacs sometimes crashes when using gnus
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62
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63 This is a known bug in this release of XEmacs on Windows.
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64
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65 If you want to use gnus anyway, you should minimize any possible data
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66 loss by saving any modified buffers before you start and ensuring that
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67 you haven't set gnus-use-dribble-file to nil or disabled the normal
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68 XEmacs auto-save mechanism.
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69
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70 ** XEmacs doesn't die when shutting down Windows 95 or 98
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71
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72 When shutting down Windows 95 or 98 you may see a dialog that says
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73 "xemacs / You must quit this program before you quit Windows".
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74 It is safe to
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75 "Click OK to quit the program and Windows",
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76 but you won't be offered a chance to save any modified XEmacs buffers.
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77
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78 * Look and feel
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79 ===============
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80 ** Key bindings
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81
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82 The C-z, C-x, C-c, and C-v keystrokes have traditional uses in both
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83 emacs and Windows programs. XEmacs binds these keys to their
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84 traditional emacs uses, and provides Windows 3.x style bindings for
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85 the Cut, Copy and Paste functions.
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86
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87 Function XEmacs binding
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88 -------- --------------
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89 Undo C-_
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90 Cut C-Insert
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91 Copy C-Insert
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92 Paste Sh-Del
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93
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94 You can rebind keys to make XEmacs more Windows-compatible; for
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95 example, to bind C-z to undo:
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96
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97 (global-set-key [(control z)] 'undo)
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98
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99 Rebindind C-x and C-c is trickier because by default these are prefix
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100 keys in XEmacs. See the "Key Bindings" node in the XEmacs manual.
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101
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102 ** Behaviour of selected regions
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103
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104 Selected regions behave differently in XEmacs from typical Windows
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105 programs. The pc-select package provides various functions to enable
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106 the standard Windows behaviour for selected regions (eg mark via
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107 shift-arrow, self-inserting deletes region, etc).
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108
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109 ** Limitations on the use of the AltGr key.
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110
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111 In some locale and OS combinations you can't generate M-AltGr-key or
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112 C-M-AltGr-key sequences at all.
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113
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114 To generate C-AltGr-key or C-M-AltGr-key sequences you must use the
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115 right-hand Control key and you must press it *after* AltGr.
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116
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117 These limitations arise from fundamental problems in the way that the
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118 win32 API reports AltGr key events. There isn't anything that XEmacs
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119 can do to work round these problems that it isn't already doing.
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120
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121 You may want to create alternative bindings if any of the standard
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122 XEmacs bindings require you to use some combination of Control or Meta
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123 and AltGr.
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124
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125
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126 * Features not fully supported in this release
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127 ==============================================
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128 ** Limited support for subprocesses
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129
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130 Attempting to use call-process to run a 16bit program gives a
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131 "Spawning child process: Exec format error". For example shell-command
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132 fails under Windows 95 and 98 if you use command.com or any other
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133 16bit program as your shell.
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134
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135 XEmacs may incorrectly quote your call-process command if it contains
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136 double quotes, backslashes or spaces.
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137
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138 start-process and functions that rely on it are supported under Windows 95,
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139 98 and NT. However, starting a 16bit program that requires keyboard input
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140 may cause XEmacs to hang or crash under Windows 95 and 98, and will leave
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141 the orphaned 16bit program consuming all available CPU time.
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142
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143 Sending signals to subprocesses started by call-process or by
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144 start-process fails with a "Cannot send signal to process" error under
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145 Windows 95 and 98. As a side effect of this, quitting XEmacs while it
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146 is still running subprocesses causes it to crash under Windows 95 and
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147 98.
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148
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149 ** Changing fonts from the Options menu
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150
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151 The "Font" and "Size" entries on the Options menu don't work yet. This
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152 will be fixed in a future release. In the meantime, you can either
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153 change face fonts with customize or manually; for example:
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154
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155 (set-face-font 'default "Lucida Console:Regular:10::Western")
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156 (set-face-font 'modeline "MS Sans Serif:Regular:10::Western")
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157
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158 Font weight and style and character set must be supplied in English as
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159 above. Common weights and styles are "Regular", "Regular Italic",
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160 "Bold" and "Bold Italic". Common character sets are "Western",
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161 "Central European" and "OEM/DOS".
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162
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163 Windows 95 only comes with one fixed-width font that is suitable for
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164 use by XEmacs, namely "Courier New".
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165
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166 ** No MULE support
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167
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168 This release of XEmacs on Windows does not contain MULE support. MULE
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169 support has not been a priority for the XEmacs on Windows developers.
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170
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171 ** Printing
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172
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173 This release of XEmacs on Windows does not support printing natively.
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174
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175 You can use the lpr-command and lpr-switches variables to specify an
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176 external print program.
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177
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