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<concept id="GUID-5C17A2E7-DE18-5CFB-A5D5-421D427CD5DD" xml:lang="en"><title>Code Organisation</title><shortdesc>This topic describes the source code for interrupt driven

keyboard drivers and related libraries.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>This topic describes the source code for interrupt driven keyboard

drivers and related libraries that Symbian platform provides. </p>

<section id="GUID-50504915-1C7C-4DA7-859B-AD2D4D584EE5"><title>Keyboard

driver</title> <p>In a reference board port, the <filepath>.mmp</filepath> file for the keyboard driver is <filepath>...\template_variant\exkey_inttemplate.mmp</filepath>. This is one of the PRJ_MMPFILES referenced in the template variant's <filepath>bld.inf</filepath> file in the <filepath>...\template_variant\...</filepath> directory, and means that the keyboard driver is built as part of

the Variant. </p> <p>The source for the driver is contained entirely

within <filepath>...\template_variant\specific\keyboard_interrupt.cpp</filepath>. </p> </section>

<section id="GUID-29C36C83-B2A2-467A-84FA-A683C09C7E68"><title>Key

translation DLL (ektran.dll)</title> <p>This DLL is part of Symbian

platform generic code and is built as part of the Text Window Server

component. </p> <p>The mmp file is located in Symbian platform generic

code in <filepath>...\e32\wserv\ektran.mmp</filepath>, which defines

the location of the source files, header files and other dependencies. </p> </section>

<section id="GUID-DE8BF244-419B-443E-BD72-9F425DF9540E"><title>Keyboard

mapping DLL (ekdata.dl)</title> <p>The DLL is platform specific. It

is built as part of the Variant. </p> <p>The mmp file has a name with

format <filepath>cakd</filepath> <i>xx</i> <filepath>.mmp</filepath>, where <i>xx</i> is the suffix that identifies the Variant in the

Variant specific <filepath>.oby</filepath> file. In the template port,

the mmp file has the name <filepath>cakdtemplate.mmp</filepath>. </p> <p>The source code for the tables is located in <filepath>keymap.cpp</filepath>, and is located in the Variant specific directory. The template

port provides outline code. </p> </section>