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<title>Splitting Windows - Using the GNAT Programming Studio</title>
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<a name="Splitting-Windows"></a>
<p>
Next: <a rel="next" accesskey="n" href="Floating-Windows.html#Floating-Windows">Floating Windows</a>,
Previous: <a rel="previous" accesskey="p" href="Closing-Windows.html#Closing-Windows">Closing Windows</a>,
Up: <a rel="up" accesskey="u" href="Multiple-Document-Interface.html#Multiple-Document-Interface">Multiple Document Interface</a>
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<h3 class="section">4.3 Splitting Windows</h3>
<p><a name="index-Splitting-113"></a><!-- -->
<p class="noindent">Windows can be split at will, through
any combination of horizontal and vertical splits.
This feature requires at least two windows (text editors, browsers, <small class="dots">...</small>)
to be superimposed in the central area. Selecting either the
<code>Window->Split Horizontally</code> or <code>Window->Split Vertically</code> menus
will then split the selected window in two. In the left (resp. top) pane,
the currently selected window will be left on its own. The rest of the
previously superimposed windows will be put in the right (resp. bottom)
pane. You can then in turn split these remaining windows to achieve any
layout you want.
<p>All split windows can be resized interactively by dragging the handles that
separate them. A preference (menu
<code>Edit->Preferences</code>) controls whether this resizing is done in opaque
mode or border mode. In the latter case, only the new handle position will
be displayed while the mouse is dragged.
<p>You may want to bind the key shortcuts to the menus
<code>Window->Split Horizontally</code>
as well as <code>Window->Split Vertically</code> using
the key manager. In addition, if you want to
achieve an effect similar to e.g. the standard Emacs behavior (where
<control-x 2> splits a window horizontally, and <control-x 3> splits
a window vertically), you can use the key manager
(see <a href="The-Key-Manager-Dialog.html#The-Key-Manager-Dialog">The Key Manager Dialog</a>).
<p><a href="Moving-Windows.html#Moving-Windows">Moving Windows</a> will show how to do the splitting through drag-and-drop
and the mouse, which in general is the fastest way to do.
<p>Several editors or browsers can be put in the same area of the MDI. In such
a case, they will be grouped together in a notebook widget, and you can
select any of them by clicking on the corresponding tab. Note that if there
are lots of windows, two small arrows will appear on the right of the tabs.
Clicking on these arrows will show the remaining tabs.
<p>In some cases GPS will change the color and size of the title (name) of a
window in the notebook tab. This indicates that the window content has been
updated, but the window wasn't visible. Typically, this is used to indicate
that new messages have been written in the messages or console window.
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