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17<title>Debugging with GDB: TUI Keys</title>
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64<a name="TUI-Keys"></a>
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66<p>
67Next: <a href="TUI-Single-Key-Mode.html#TUI-Single-Key-Mode" accesskey="n" rel="next">TUI Single Key Mode</a>, Previous: <a href="TUI-Overview.html#TUI-Overview" accesskey="p" rel="previous">TUI Overview</a>, Up: <a href="TUI.html#TUI" accesskey="u" rel="up">TUI</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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69<hr>
70<a name="TUI-Key-Bindings"></a>
71<h3 class="section">25.2 TUI Key Bindings</h3>
72<a name="index-TUI-key-bindings"></a>
73
74<p>The TUI installs several key bindings in the readline keymaps
75(see <a href="Command-Line-Editing.html#Command-Line-Editing">Command Line Editing</a>).
76The following key bindings are installed for both TUI mode and the
77<small>GDB</small> standard mode.
78</p>
79<dl compact="compact">
80<dd><a name="index-C_002dx-C_002da"></a>
81</dd>
82<dt><kbd>C-x C-a</kbd></dt>
83<dd><a name="index-C_002dx-a"></a>
84</dd>
85<dt><kbd>C-x a</kbd></dt>
86<dd><a name="index-C_002dx-A"></a>
87</dd>
88<dt><kbd>C-x A</kbd></dt>
89<dd><p>Enter or leave the TUI mode.  When leaving the TUI mode,
90the curses window management stops and <small>GDB</small> operates using
91its standard mode, writing on the terminal directly.  When reentering
92the TUI mode, control is given back to the curses windows.
93The screen is then refreshed.
94</p>
95<p>This key binding uses the bindable Readline function
96<code>tui-switch-mode</code>.
97</p>
98<a name="index-C_002dx-1"></a>
99</dd>
100<dt><kbd>C-x 1</kbd></dt>
101<dd><p>Use a TUI layout with only one window.  The layout will
102either be &lsquo;<samp>source</samp>&rsquo; or &lsquo;<samp>assembly</samp>&rsquo;.  When the TUI mode
103is not active, it will switch to the TUI mode.
104</p>
105<p>Think of this key binding as the Emacs <kbd>C-x 1</kbd> binding.
106</p>
107<p>This key binding uses the bindable Readline function
108<code>tui-delete-other-windows</code>.
109</p>
110<a name="index-C_002dx-2"></a>
111</dd>
112<dt><kbd>C-x 2</kbd></dt>
113<dd><p>Use a TUI layout with at least two windows.  When the current
114layout already has two windows, the next layout with two windows is used.
115When a new layout is chosen, one window will always be common to the
116previous layout and the new one.
117</p>
118<p>Think of it as the Emacs <kbd>C-x 2</kbd> binding.
119</p>
120<p>This key binding uses the bindable Readline function
121<code>tui-change-windows</code>.
122</p>
123<a name="index-C_002dx-o"></a>
124</dd>
125<dt><kbd>C-x o</kbd></dt>
126<dd><p>Change the active window.  The TUI associates several key bindings
127(like scrolling and arrow keys) with the active window.  This command
128gives the focus to the next TUI window.
129</p>
130<p>Think of it as the Emacs <kbd>C-x o</kbd> binding.
131</p>
132<p>This key binding uses the bindable Readline function
133<code>tui-other-window</code>.
134</p>
135<a name="index-C_002dx-s"></a>
136</dd>
137<dt><kbd>C-x s</kbd></dt>
138<dd><p>Switch in and out of the TUI SingleKey mode that binds single
139keys to <small>GDB</small> commands (see <a href="TUI-Single-Key-Mode.html#TUI-Single-Key-Mode">TUI Single Key Mode</a>).
140</p>
141<p>This key binding uses the bindable Readline function
142<code>next-keymap</code>.
143</p></dd>
144</dl>
145
146<p>The following key bindings only work in the TUI mode:
147</p>
148<dl compact="compact">
149<dd><a name="index-PgUp"></a>
150</dd>
151<dt><tt class="key">PgUp</tt></dt>
152<dd><p>Scroll the active window one page up.
153</p>
154<a name="index-PgDn"></a>
155</dd>
156<dt><tt class="key">PgDn</tt></dt>
157<dd><p>Scroll the active window one page down.
158</p>
159<a name="index-Up"></a>
160</dd>
161<dt><tt class="key">Up</tt></dt>
162<dd><p>Scroll the active window one line up.
163</p>
164<a name="index-Down"></a>
165</dd>
166<dt><tt class="key">Down</tt></dt>
167<dd><p>Scroll the active window one line down.
168</p>
169<a name="index-Left"></a>
170</dd>
171<dt><tt class="key">Left</tt></dt>
172<dd><p>Scroll the active window one column left.
173</p>
174<a name="index-Right"></a>
175</dd>
176<dt><tt class="key">Right</tt></dt>
177<dd><p>Scroll the active window one column right.
178</p>
179<a name="index-C_002dL"></a>
180</dd>
181<dt><kbd>C-L</kbd></dt>
182<dd><p>Refresh the screen.
183</p></dd>
184</dl>
185
186<p>Because the arrow keys scroll the active window in the TUI mode, they
187are not available for their normal use by readline unless the command
188window has the focus.  When another window is active, you must use
189other readline key bindings such as <kbd>C-p</kbd>, <kbd>C-n</kbd>, <kbd>C-b</kbd>
190and <kbd>C-f</kbd> to control the command window.
191</p>
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195Next: <a href="TUI-Single-Key-Mode.html#TUI-Single-Key-Mode" accesskey="n" rel="next">TUI Single Key Mode</a>, Previous: <a href="TUI-Overview.html#TUI-Overview" accesskey="p" rel="previous">TUI Overview</a>, Up: <a href="TUI.html#TUI" accesskey="u" rel="up">TUI</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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