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<title>Debugging with GDB: TUI Keys</title>
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<a name="TUI-Keys"></a>
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<div class="header">
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<p>
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Next: <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="prev">TUI Overview</a>, Up: <a href="TUI.html#TUI" accesskey="u" rel="up">TUI</a> [<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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<hr>
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<a name="TUI-Key-Bindings"></a>
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<h3 class="section">25.2 TUI Key Bindings</h3>
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<a name="index-TUI-key-bindings"></a>
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<p>The TUI installs several key bindings in the readline keymaps
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(see <a href="Command-Line-Editing.html#Command-Line-Editing">Command Line Editing</a>).
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The following key bindings are installed for both TUI mode and the
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<small>GDB</small> standard mode.
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</p>
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<dl compact="compact">
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<dd><a name="index-C_002dx-C_002da"></a>
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</dd>
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<dt><kbd>C-x C-a</kbd></dt>
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<dd><a name="index-C_002dx-a"></a>
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</dd>
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<dt><kbd>C-x a</kbd></dt>
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<dd><a name="index-C_002dx-A"></a>
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</dd>
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<dt><kbd>C-x A</kbd></dt>
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<dd><p>Enter or leave the TUI mode. When leaving the TUI mode,
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the curses window management stops and <small>GDB</small> operates using
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its standard mode, writing on the terminal directly. When reentering
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the TUI mode, control is given back to the curses windows.
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The screen is then refreshed.
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</p>
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<a name="index-C_002dx-1"></a>
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</dd>
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<dt><kbd>C-x 1</kbd></dt>
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<dd><p>Use a TUI layout with only one window. The layout will
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either be ‘<samp>source</samp>’ or ‘<samp>assembly</samp>’. When the TUI mode
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is not active, it will switch to the TUI mode.
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</p>
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<p>Think of this key binding as the Emacs <kbd>C-x 1</kbd> binding.
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</p>
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<a name="index-C_002dx-2"></a>
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</dd>
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<dt><kbd>C-x 2</kbd></dt>
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<dd><p>Use a TUI layout with at least two windows. When the current
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layout already has two windows, the next layout with two windows is used.
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When a new layout is chosen, one window will always be common to the
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previous layout and the new one.
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</p>
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<p>Think of it as the Emacs <kbd>C-x 2</kbd> binding.
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</p>
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<a name="index-C_002dx-o"></a>
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</dd>
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<dt><kbd>C-x o</kbd></dt>
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<dd><p>Change the active window. The TUI associates several key bindings
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(like scrolling and arrow keys) with the active window. This command
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gives the focus to the next TUI window.
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</p>
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<p>Think of it as the Emacs <kbd>C-x o</kbd> binding.
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</p>
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<a name="index-C_002dx-s"></a>
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</dd>
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<dt><kbd>C-x s</kbd></dt>
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<dd><p>Switch in and out of the TUI SingleKey mode that binds single
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keys to <small>GDB</small> commands (see <a href="TUI-Single-Key-Mode.html#TUI-Single-Key-Mode">TUI Single Key Mode</a>).
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</p></dd>
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</dl>
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<p>The following key bindings only work in the TUI mode:
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</p>
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<dl compact="compact">
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<dd><a name="index-PgUp"></a>
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</dd>
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<dt><tt class="key">PgUp</tt></dt>
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<dd><p>Scroll the active window one page up.
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</p>
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<a name="index-PgDn"></a>
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</dd>
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<dt><tt class="key">PgDn</tt></dt>
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<dd><p>Scroll the active window one page down.
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</p>
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<a name="index-Up"></a>
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</dd>
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<dt><tt class="key">Up</tt></dt>
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<dd><p>Scroll the active window one line up.
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</p>
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<a name="index-Down"></a>
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</dd>
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<dt><tt class="key">Down</tt></dt>
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<dd><p>Scroll the active window one line down.
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</p>
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<a name="index-Left"></a>
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</dd>
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<dt><tt class="key">Left</tt></dt>
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<dd><p>Scroll the active window one column left.
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</p>
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<a name="index-Right"></a>
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</dd>
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<dt><tt class="key">Right</tt></dt>
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<dd><p>Scroll the active window one column right.
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</p>
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<a name="index-C_002dL"></a>
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</dd>
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<dt><kbd>C-L</kbd></dt>
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<dd><p>Refresh the screen.
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</p></dd>
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</dl>
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<p>Because the arrow keys scroll the active window in the TUI mode, they
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are not available for their normal use by readline unless the command
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window has the focus. When another window is active, you must use
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other readline key bindings such as <kbd>C-p</kbd>, <kbd>C-n</kbd>, <kbd>C-b</kbd>
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and <kbd>C-f</kbd> to control the command window.
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</p>
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<hr>
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<div class="header">
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<p>
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Next: <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="prev">TUI Overview</a>, Up: <a href="TUI.html#TUI" accesskey="u" rel="up">TUI</a> [<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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