Difference between revisions of "Development/Tutorials/Programming Tutorial KDE 4"

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Start
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=Start=
 
To learn KDE programming, first read this:
 
To learn KDE programming, first read this:
 
http://developer.kde.org/~wheeler/cpp-pitfalls.html
 
http://developer.kde.org/~wheeler/cpp-pitfalls.html
  
Your first program shall greet the world with a friendly "hello world", what else ? For that, we will use a KMessageBox. To get more information about the KMessageBox-Class, type "kde: kmessagebox" in your konqueror and it will redirect you to http://developer.kde.org/documentation/library/cvs-api/kdelibs-apidocs/kdeui/html/classKMessageBox.html
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* [[ProgrammingTutorialFirstProgram | Your first program]]
 
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* [[How to write Kontact plugins]]
#include <QString>
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#include <kapplication.h>
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#include <kaboutdata.h>
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#include <kmessagebox.h>
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#include <kcmdlineargs.h>
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int main (int argc, char *argv[])
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{
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  KAboutData aboutData( "test", "test",
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      "1.0", "test", KAboutData::License_GPL,
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      "(c) 2006" );
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  KCmdLineArgs::init( argc, argv, &aboutData );
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  KApplication khello;
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  KGuiItem kgi(QString("Hello"),QString(),QString("this is a tooltip"),QString("this is whatsthis"));
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  KMessageBox::questionYesNo(0,"text","caption",kgi);
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}
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If you set up your environment as in KDE3To4, you can compile this code with
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gcc hello.cpp -o hello -I/home/kde-devel/qt-unstable/include/Qt  -I/home/kde-devel/qt-unstable/include/Qt-Core \
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-I/home/kde-devel/qt-unstable/include -I/home/kde-devel/kde/include  -L/home/kde-devel/kde/lib \
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-L/home/kde-devel/qt-unstable/lib -lkdeui -lkdecore -ldl     
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and then run it with
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./hello
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Revision as of 04:55, 30 August 2006

This is a tutorial to learn KDE programming by examples. It assumes you are working with KDE 4, not KDE 3 (see build_unstable for how to build it).


Start

To learn KDE programming, first read this: http://developer.kde.org/~wheeler/cpp-pitfalls.html


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