7 Nokia Corporation - initial contribution. |
7 Nokia Corporation - initial contribution. |
8 Contributors: |
8 Contributors: |
9 --> |
9 --> |
10 <!DOCTYPE concept |
10 <!DOCTYPE concept |
11 PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
11 PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
12 <concept id="GUID-3603126B-661E-509B-8CCF-04A99F9ACE07" xml:lang="en"><title>HelloWorld: |
12 <concept id="GUID-3603126B-661E-509B-8CCF-04A99F9ACE07" xml:lang="en"><title>HelloWorld: writes “Hello World!” to the console</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
13 writes “Hello World!” to the console</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
13 <section id="GUID-9B04430C-4ACD-4C91-ABA1-FC83264E8F6B"><title>Description</title> <p> <codeph>HelloWorld</codeph> is a very simple piece of code showing how text is written to the |
14 <section><title>Description</title> <p> <codeph>HelloWorld</codeph> is a very |
14 console. All other examples in <filepath>Basics</filepath> and <filepath>System</filepath> use the same technique. </p> <p>The file <filepath>CommonFramework.h</filepath> contains the entry point and all code |
15 simple piece of code showing how text is written to the console. All other |
15 necessary to support the example itself, including the construction |
16 examples in <filepath>Basics</filepath> and <filepath>System</filepath> use |
16 of the console and the cleanup stack. Putting code into a <filepath>.h</filepath> file may not be conventional practice, but it is useful |
17 the same technique. </p> <p>The file <filepath>CommonFramework.h</filepath> contains |
17 to do so here. </p> </section> |
18 the entry point and all code necessary to support the example itself, including |
18 <section id="GUID-9D8D6977-5AEA-400F-B2B6-0603738FD4BC"><title>Download</title> <p>Click on the following link to |
19 the construction of the console and the cleanup stack. Putting code into a <filepath>.h</filepath> file |
19 download the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-9a9bd0dd-017a-4460-b7d8-019616ebfa39.zip" scope="external">HelloWorld.zip</xref></p><p>Download some additional |
20 may not be conventional practice, but it is useful to do so here. </p> </section> |
20 files required by the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.zip" scope="external">CommonFramework.zip</xref>.</p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-9a9bd0dd-017a-4460-b7d8-019616ebfa39.html" scope="peer">browse</xref> to view the example code. </p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.html" scope="peer">browse</xref> to view the additional file.</p> </section> |
21 <section><title>Download</title> <p>Click on the following link to download |
21 <section id="GUID-A2B5A863-F70B-41F2-9377-DD2661996321"><title>Build</title> <p>The example includes the two project |
22 the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-9a9bd0dd-017a-4460-b7d8-019616ebfa39.zip" scope="external">HelloWorld.zip</xref></p><p>Download some additional files |
22 files needed for building: <filepath>bld.inf</filepath> and the <filepath>.mmp</filepath> file. </p> <p>The Symbian platform build process |
23 required by the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.zip" scope="external">CommonFramework.zip</xref>.</p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-9a9bd0dd-017a-4460-b7d8-019616ebfa39.html" scope="peer">browse</xref> to view the example code. </p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.html" scope="peer">browse</xref> to view the additional file.</p> </section> |
23 describes how to build this application, which results in an executable |
24 <section><title>Build</title> <p>The example includes the two project files |
24 called: </p> <p> <filepath>\epoc32\release\<target>\<urel |
25 needed for building: <filepath>bld.inf</filepath> and the <filepath>.mmp</filepath> file. </p> <p><xref href="GUID-3100800B-B2F7-50EF-BD4C-3C345ECCB2A5.dita">The Symbian platform build |
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26 process</xref> describes how to build this application, which results in an |
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27 executable called: </p> <p> <filepath>\epoc32\release\<target>\<urel |
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28 or udeb>\HELLOWORLD.EXE</filepath>. </p> </section> |
25 or udeb>\HELLOWORLD.EXE</filepath>. </p> </section> |
29 <section><title>Usage</title> <p>Run the executable <filepath>HELLOWORLD.EXE</filepath>. </p> <p>Executables |
26 <section id="GUID-1F313CF4-9A1C-4A36-8DE2-FF2868A58417"><title>Usage</title> <p>Run the executable <filepath>HELLOWORLD.EXE</filepath>. </p> <p>Executables for the emulator targets <filepath>wins</filepath> and <filepath>winscw</filepath> can be run on your PC. Executables |
30 for the emulator targets <filepath>wins</filepath> and <filepath>winscw</filepath> can |
27 for ARM targets must be copied to your target platform before being |
31 be run on your PC. Executables for ARM targets must be copied to your target |
28 run. </p> </section> |
32 platform before being run. </p> </section> |
29 <section id="GUID-4778E674-9FB8-4A55-B6BB-026F721AA23A"><title>Classes used</title> <p>The example shows the use |
33 <section><title>Classes used</title> <p>The example shows the use of the <codeph>_LIT</codeph> macro |
30 of the <codeph>_LIT</codeph> macro which is used throughout all of |
34 which is used throughout all of the examples. The macro generates a: </p> <codeblock id="GUID-FD21D75C-AA23-5F83-9076-2F9CA6F313A8" xml:space="preserve">const static TLitC<TInt></codeblock> <p>object |
31 the examples. The macro generates a: </p> <codeblock id="GUID-FD21D75C-AA23-5F83-9076-2F9CA6F313A8" xml:space="preserve">const static TLitC<TInt></codeblock> <p>object and is an efficient and convenient way of generating constant |
35 and is an efficient and convenient way of generating constant literal text. </p> <p>As |
32 literal text. </p> <p>As this is a wide (Unicode) build, <codeph>TLItC<TInt></codeph> is a typedef for <codeph>TLitC16<TInt>.</codeph> </p> </section> |
36 this is a wide (Unicode) build, <codeph>TLItC<TInt></codeph> is a typedef |
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37 for <codeph>TLitC16<TInt>.</codeph> </p> </section> |
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38 </conbody></concept> |
33 </conbody></concept> |