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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="GUID-659E2A30-C2E0-4E5A-AA9F-50EBEC7E9579" xml:lang="en"><title>Windows

and panes</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>The display layouts are hierarchically organized. The layouts are built

using components called windows and panes.</p>

<table id="GUID-4E9DAC1B-1835-4838-ADBA-34EA35E77DF9"><title>Windows and panes</title>

<tgroup cols="2"><colspec colname="col1"/><colspec colname="col2"/>

<thead>

<row>

<entry>Window / Pane</entry>

<entry><p>Description</p></entry>

</row>

</thead>

<tbody>

<row>

<entry><p>Screen</p></entry>

<entry><p>The screen is the topmost display component, corresponding to the

entire pixel area of the physical screen.</p></entry>

</row>

<row>

<entry><p>Window</p></entry>

<entry><p>A window is a component that has no parent except the screen. Typically,

a window fills up the entire screen, but there are also smaller (temporary)

windows that take up only a part of the screen, leaving other parts of the

screen visible around themselves. Each application runs in a window of its

own. Applications can also use other temporary windows.</p></entry>

</row>

<row>

<entry><p>Pane</p></entry>

<entry><p>A pane is a subcomponent of a window. A window may contain several

panes, and each pane may contain further sub-panes and so on. A bottom level

component that cannot have a sub-component can be called an element.</p></entry>

</row>

<row>

<entry><p>Application window</p></entry>

<entry><p>An application window is a principal window filling up the entire

screen. It is usually not used directly for display, but just as a parent

for the various panes. A typical application window is divided into the following

panes:<ul>

<li><p/> Status pane</li>

<li><p/>Main pane</li>

<li><p/>Control pane</li>

</ul> See <xref href="GUID-08B878D0-C0DA-46CC-ACC2-E576E5A3D937.dita">Main pane</xref> , <xref href="GUID-771AF721-E2D7-41C8-BF97-5BD30D1A28AD.dita">Status pane</xref> and <xref href="GUID-8B137691-7C9E-4085-BFFE-4CFE4A64A091.dita">Control pane</xref> for more

detailed descriptions on each of these panes.</p></entry>

</row>

<row>

<entry><p>Pop-up window</p></entry>

<entry><p>A pop-up window must not fill the entire screen; the pop-up window

has a frame, and typically the underlying application is partly visible around

the pop-up window. Pop-up windows are typically used in temporary states.

Back stepping should not usually lead to a pop-up window. Detailed information

on the various pop-up windows can be found in <xref href="GUID-2922758C-37A4-436E-B0F3-358944F84E2A.dita">Pop-up

windows</xref>.</p></entry>

</row>

</tbody>

</tgroup>

</table>

<fig id="GUID-56AA0B14-761D-46AA-A66C-703B471D532B">

<title>Panes</title>

<image href="GUID-879B4D94-2614-4515-9947-B1329F62E90A_d0e52830_href.png" scale="40" placement="inline"/>

</fig>

<section id="GUID-EA67A1C1-D843-48BF-BC32-BB8225B65220"><title>Using

windows and panes in C++ applications</title><p>Windows and panes use the

Symbian application and UI frameworks. For implementation information, see <xref href="GUID-29486886-CB54-4A83-AD6D-70F971A86DFC.dita">Application and UI framework

implementation considerations</xref>.</p></section>

</conbody></concept>