Development/Tutorials/Printing Hello World: Difference between revisions

    From KDE TechBase
    (everybody, stop this moving target! Don't rename back and forth KDE4_KDECORE_LIBS and KDE4_KDEUI_LIBS.)
    (everybody, stop this moving target. Keep KAboutData stable :()
    Line 18: Line 18:
    int main(int argc, char *argv[])
    int main(int argc, char *argv[])
    {
    {
         KAboutData aboutData( "test", "test", "1.0", "test",
         KAboutData aboutData(
                              KAboutData::License_GPL, "(c) 2006" );
                            // The program name used internally.
                            "tutorial-printing",
                            // The message catalog name
                            // If null, program name is used instead.
                            0,
                            // A displayable program name string.
                            ki18n("Printing Tutorial"),
                            // The program version string.
                            "1.0",
                            // Short description of what the app does.
                            ki18n("Displays a KMessageBox popup"),
                            // The license this code is released under
                            KAboutData::License_GPL,
                            // Copyright Statement
                            ki18n("(c) 2006-2011"),
                            // Optional text shown in the About box.
                            // Can contain any information desired.
                            ki18n("Some text..."),
                            // The program homepage string.
                            "http://example.com/",
                            // The bug report email address
                            "[email protected]");
         KCmdLineArgs::init( argc, argv, &aboutData );
         KCmdLineArgs::init( argc, argv, &aboutData );
         KApplication app;
         KApplication app;

    Revision as of 18:03, 25 September 2011

    The mission

    Print Hello World on your printer.

    The code

    #include <qpainter.h>
    #include <qprinter.h>
    #include <kapplication.h>
    #include <kaboutdata.h>
    #include <kmessagebox.h>
    #include <kcmdlineargs.h>
    
    /*
    This prints Hello World on your printer
    */
    
    int main(int argc, char *argv[])
    {
        KAboutData aboutData(
                             // The program name used internally.
                             "tutorial-printing",
                             // The message catalog name
                             // If null, program name is used instead.
                             0,
                             // A displayable program name string.
                             ki18n("Printing Tutorial"),
                             // The program version string.
                             "1.0",
                             // Short description of what the app does.
                             ki18n("Displays a KMessageBox popup"),
                             // The license this code is released under
                             KAboutData::License_GPL,
                             // Copyright Statement
                             ki18n("(c) 2006-2011"),
                             // Optional text shown in the About box.
                             // Can contain any information desired.
                             ki18n("Some text..."),
                             // The program homepage string.
                             "http://example.com/",
                             // The bug report email address
                             "[email protected]");
        KCmdLineArgs::init( argc, argv, &aboutData );
        KApplication app;
    
        QPrinter printer;
        printer.setFullPage(true);
        QPainter painter;
        painter.begin(&printer);
        painter.drawText(100,100,"Hello World");
        painter.end(); 
        // this makes the print job start
    }
    

    How to compile

    CMakeLists.txt

    find_package(KDE4 REQUIRED)
    include_directories( ${KDE4_INCLUDES} )
    kde4_add_executable(printhelloworld printtest.cpp)
    target_link_libraries(printhelloworld ${KDE4_KDEUI_LIBS} ${QT_QTGUI_LIBRARY})
    

    Make and Run

    Then do:

    cmake .
    make
    ./printhelloworld