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<a name="GDB-Text-User-Interface"></a>
<h2 class="chapter">25 <small>GDB</small> Text User Interface</h2>
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<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">• <a href="TUI-Overview.html#TUI-Overview" accesskey="1">TUI Overview</a>:</td><td> </td><td align="left" valign="top">TUI overview
</td></tr>
<tr><td align="left" valign="top">• <a href="TUI-Keys.html#TUI-Keys" accesskey="2">TUI Keys</a>:</td><td> </td><td align="left" valign="top">TUI key bindings
</td></tr>
<tr><td align="left" valign="top">• <a href="TUI-Single-Key-Mode.html#TUI-Single-Key-Mode" accesskey="3">TUI Single Key Mode</a>:</td><td> </td><td align="left" valign="top">TUI single key mode
</td></tr>
<tr><td align="left" valign="top">• <a href="TUI-Commands.html#TUI-Commands" accesskey="4">TUI Commands</a>:</td><td> </td><td align="left" valign="top">TUI-specific commands
</td></tr>
<tr><td align="left" valign="top">• <a href="TUI-Configuration.html#TUI-Configuration" accesskey="5">TUI Configuration</a>:</td><td> </td><td align="left" valign="top">TUI configuration variables
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<p>The <small>GDB</small> Text User Interface (TUI) is a terminal
interface which uses the <code>curses</code> library to show the source
file, the assembly output, the program registers and <small>GDB</small>
commands in separate text windows. The TUI mode is supported only
on platforms where a suitable version of the <code>curses</code> library
is available.
</p>
<p>The TUI mode is enabled by default when you invoke <small>GDB</small> as
‘<samp>gdb -tui</samp>’.
You can also switch in and out of TUI mode while <small>GDB</small> runs by
using various TUI commands and key bindings, such as <code>tui
enable</code> or <kbd>C-x C-a</kbd>. See <a href="TUI-Commands.html#TUI-Commands">TUI Commands</a>, and
<a href="TUI-Keys.html#TUI-Keys">TUI Key Bindings</a>.
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