Symbian3/PDK/Source/GUID-0F1CB874-391F-5D44-B960-517E447DC712.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Thu, 11 Mar 2010 18:02:22 +0000
changeset 3 46218c8b8afa
parent 1 25a17d01db0c
child 5 f345bda72bc4
permissions -rw-r--r--
week 10 bug fix submission (SF PDK version): Bug 1892, Bug 1897, Bug 1319. Also 3 or 4 documents were found to contain code blocks with SFL, which has been fixed. Partial fix for broken links, links to Forum Nokia, and the 'Symbian platform' terminology issues.

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
<!-- This component and the accompanying materials are made available under the terms of the License 
"Eclipse Public License v1.0" which accompanies this distribution, 
and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
<!-- Initial Contributors:
    Nokia Corporation - initial contribution.
Contributors: 
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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept xml:lang="en" id="GUID-0F1CB874-391F-5D44-B960-517E447DC712"><title>Accessing the Running Applications</title><shortdesc>Applications running on a device are known as tasks. The <apiname>TApaTaskList</apiname> class is used to access applications running on a device, where each task can be an instance of the <apiname>TApaTask</apiname> class, which is used to manipulate or query tasks. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody><section id="GUID-991C9C7B-42B7-5357-B09B-C8A0F59716B0"><title>Finding an application by its UID</title> <p>The following example code shows how to find or end a running application that is, a task by its UID using the <xref href="GUID-E1A1806C-8757-35DF-A4FB-AE3C63DED364.dita"><apiname>TApaTaskList</apiname></xref> and <xref href="GUID-851055CF-D5E6-34EA-8D4B-53FC50D90C24.dita"><apiname>TApaTask</apiname></xref> classes. </p> <codeblock id="GUID-C85440FD-57E3-5CB6-88A2-6F2551B37EF7" xml:space="preserve">// Assign UID of the application to a constant, to find the application by its UID

const TUid KMyAppUid = {0x10009e9f};

// Creates an instance of a TApaTaskList taking reference to a window server session.
//    TApaTaskList allows access to all tasks running on the device. 
             
TApaTaskList taskList(CCoeEnv::Static()-&gt;WsSession());

// Creates a TApaTask instance that allows us to find out things about the task in question, for example: send a
// key-stroke to it, abort or end the task.              

TApaTask task = taskList.FindApp(KMyAppUid);

// Checks whether the specified task exists on the device.          

if (task.Exists())
    {
    task.EndTask(); // Ends the task
    }</codeblock> </section> <section id="GUID-D785BAD1-5071-5766-89A7-26E925826B9F"><title>Bringing an application to the foreground</title> <p>The following code example shows how to find an application by its name and then bring it to the foreground. </p> <codeblock id="GUID-84318E73-F144-5031-853B-971E2257D0D5" xml:space="preserve">_LIT(KAppName, "myApp");
TApaTaskList taskList(CCoeEnv::Static()-&gt;WsSession());
TApaTask task = taskList.FindApp(KAppName);
if (task.Exists())
    {
    task.BringToForeground();
    }</codeblock> </section> </conbody></concept>