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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-EC49B54F-7724-433B-BD7F-201DE3B7DAA6" xml:lang="en"><title>Resource
file structure</title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p><xref href="GUID-5F749184-C804-41FC-BA81-038783BDC967.dita">Resource</xref> files
may consist of comments, C++ pre-processor statements, and structure statements
indicated by predefined keywords.</p>
<p>For more information on the format of resource files, see <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/index.html#DevTools%2dref%2erss" format="application/java-archive">Resource file source format</xref>.</p>
<p>For a commented example of a resource file, see <xref href="GUID-411ACFE6-0324-4330-ABCD-97A925759A3C.dita">Resource
management example: HelloWorldBasic</xref>.</p>
<p>A resource file has the following structure:</p>
<section id="GUID-727A33A2-4324-4834-88B2-0D461C2A1732"><title>Comments</title>
<p>You can use either C (<parmname>/* */</parmname>) or C++ (<parmname>//</parmname>)
style comments.</p>
<p>For more information on the lexical conventions of resource files, see
 <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format.conventions.html#DevTools%2dref%2erss%2e2" format="application/java-archive">Lexical conventions</xref>.</p>
</section>
<section id="GUID-D8ED42A3-6BB7-4A7E-A0AB-3932D4366AAE"><title>NAME statements</title>
<p>The first non-comment statement in a resource must be the <parmname>NAME</parmname> statement.
The syntax is as follows:</p>
<codeblock id="GUID-C90E900E-4539-47BB-B51B-0F600B0DE86E" xml:space="preserve">NAME name</codeblock>
<p>where <parmname>name</parmname> is a 4 letter ID that is unique in the
application. This ID is used to differentiate and access resource files when
an application uses multiple resource files.</p>
<p>For more information on the <parmname>NAME</parmname> statement, see <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format-NAME.html#DevTools%2dref%2erss%2dname" format="application/java-archive">NAME statement</xref>. </p>
</section>
<section id="GUID-F27B120A-3B53-4B8A-828C-302B95E6E520"><title>C++ pre-processor
statements</title>
<p>The resource compiler supports a set of pre-processor statements, including:</p>
<ul>
<li><p><parmname>#define</parmname></p></li>
<li><p><parmname>#include</parmname></p></li>
<li><p><parmname>#ifdef</parmname></p></li>
<li><p><parmname>#ifndef</parmname></p></li>
<li><p><parmname>#if</parmname></p></li>
<li><p><parmname>#else</parmname></p></li>
<li><p><parmname>#endif</parmname></p></li>
</ul>
<p>For more information on the supported pre-processor statements, see
 <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format.preprocess.html#DevTools%2dref%2erss%2e3" format="application/java-archive">C++ pre-processor statements</xref>.</p>
<p>Typically, resource files contain <parmname>#includes</parmname> statements
for the following files:</p>
<ul>
<li><p><parmname>appinfo.rh</parmname></p></li>
<li><p><parmname>avkon.rh</parmname></p></li>
<li><p><parmname>avkon.rsg</parmname></p></li>
<li><p><parmname>eikon.rh</parmname></p></li>
</ul>
<p>These files are located under the <parmname>/Epoc32/include</parmname> folder.
They contain the structure declarations for commonly used data structures
in the Symbian platform.</p>

</section>
<section id="GUID-9D5B35E3-21F3-4E22-B03B-8C9E6E1027C9"><title>RESOURCE statements
syntax</title>
<p>The RESOURCE keyword is used to declare a resource in a resource file.
The syntax is as follows:</p>
<codeblock id="GUID-88C7579F-4917-488F-8834-0579A3150D85" xml:space="preserve">RESOURCE &lt;STRUCT_NAME&gt; | &lt;resource_name&gt; |
{
&lt;resource-initialiser-list&gt;
}</codeblock>
<p>where:</p>
<ul>
<li><p><parmname>&lt;STRUCT_NAME&gt;</parmname> is the name of a declared
data structure in an included resource header file.</p><p><parmname>&lt;STRUCT_NAME&gt;</parmname> must
be in upper case.</p></li>
<li><p><parmname>resource_name</parmname> identifies the resource
.</p><p><parmname>resource_name</parmname> must be in lower case.</p>
</li>
<li><p><parmname>resource-initialiser-list</parmname> contains the
values the members of the structure should be initialized with when the default
values should not be used.</p></li>
</ul>
<p><parmname>RESOURCE</parmname> statements may include resources defined
within other resource statements in the resource file. For example:</p>
<codeblock id="GUID-7F4CC81B-A596-4341-ACF2-61FEF518A9FF" xml:space="preserve">RESOURCE EIK_APP_INFO
    {
    menubar = r_name;
    }</codeblock>
<p>uses a resource declared in a later statement to define its menu bar.
For more information, see<xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-resource/uikon/EIK_APP_INFO.html#EIK_APP_INFO" format="application/java-archive"><parmname>EIK_APP_INFO</parmname></xref>.</p>
<p>Resource statements may also included nested resource structures. For
example:</p>
<codeblock id="GUID-4A787831-2658-4BC0-939A-1346C3C05FE4" xml:space="preserve">RESOURCE MENU_PANE r_name2
    {
    items =
        {
         MENU_TITLE 
             {
	             menu_pane = r_name3;
	             }
         };
    }</codeblock>
<p>For more information on the <parmname>MENU_PANE</parmname> resource
see ,  <xref href="GUID-E849C798-07A0-47B3-BDBF-203325062FBD.dita">Menu bar resource
statements</xref>.</p>
<p>For more information on structures, see:</p>
<ul>
<li><p><xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format.struct.html#DevTools%2dref%2erss%2dstruct" format="application/java-archive">STRUCT
statement</xref></p></li>
<li><p><xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format.struct-member.html#DevTools%2dref%2erss%2ddefine%2dmember" format="application/java-archive">STRUCT member types</xref></p></li>
<li><p><xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format.arrays.html#DevTools%2dref%2erss%2darray" format="application/java-archive">Arrays
within structs</xref></p></li>
</ul>
<p>For more on resource statements, see:</p>
<ul>
<li><p><xref href="GUID-23A60DE7-B72D-41BD-9F1E-882D31A7E3C7.dita">Required
resource file statements</xref></p>
</li>
<li><p><xref href="GUID-2C74E932-B1CA-434B-AF96-66D52D689620.dita">Optional
resource file statements</xref></p>
</li>
<li><p><xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/ToolsAndUtilities94/DevTools-ref/ResourceFileFormat/Tool_Ref_RSS-file-format.resource.html#DevTools%2dref%2erss%2dresource" format="application/java-archive">RESOURCE
statement</xref>.</p></li>
</ul>
</section>
</conbody></concept>