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  4. [Solved]Why my defined QAction has no response?
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[Solved]Why my defined QAction has no response?

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  • S Offline
    S Offline
    Sam
    wrote on last edited by
    #7

    You are welcome,

    bq. I am sorry for my silly problem.

    No need, we all are here to learn :)

    Kindly Edit your first post and prepend [Solved] to the title.

    Happy Coding !!

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    • G Offline
      G Offline
      gayu
      wrote on last edited by
      #8

      In my project i also used the same QAction, but when compiling it show some errors.
      Thats y i asked u about the QAction. Will u please tell me about that

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      • S Offline
        S Offline
        Sam
        wrote on last edited by
        #9

        [quote author="gayu" date="1353399435"]In my project i also used the same QAction, but when compiling it show some errors.
        Thats y i asked u about the QAction. Will u please tell me about that[/quote]

        What errors are you getting ?

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        • G Offline
          G Offline
          gayu
          wrote on last edited by
          #10

          ERROR
          no matching function for call to ‘QAction::QAction(QString, QPixmap, QString, unsigned int, mainForm* const, const char [8])’

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          • S Offline
            S Offline
            Sam
            wrote on last edited by
            #11

            And how are you connecting the signals and slots ? Kindly share your code .

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            • G Offline
              G Offline
              gayu
              wrote on last edited by
              #12

              Ya sure
              The following is the main.cpp file

              @
              #include <qapplication.h>
              #include "mainform.h"

              int main( int argc, char ** argv )
              {
              QApplication a( argc, argv );
              mainForm w;
              w.show();
              a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) );
              return a.exec();
              }
              @
              The following code is somewhere in the mainform.cpp file

              @
              void mainForm::setupLanguageActions()
              {

              Q3ToolBar *tb = new Q3ToolBar( this );
              tb->setLabel( "Language Actions" );
              Q3PopupMenu *menu = new Q3PopupMenu( this );
              menuBar()->insertItem( tr( "&Language" ), menu );
              
              Q3Action *a;
              a = new Q3Action( tr( "Tamil" ), tr( "&Tamil" ), Qt::CTRL + Qt::Key_Z, this, "langtamil" );
              connect( a, SIGNAL( activated() ), this, SLOT( ChangeLangTamil() ) );
              a->addTo( tb );
              a->addTo( menu );
              
              a = new Q3Action( tr( "Hindi" ), tr( "&Hindi" ), Qt::CTRL + Qt::Key_Y, this, "langhindi" );
              connect( a, SIGNAL( activated() ), this, SLOT( ChangeLangHindi() ) );
              a->addTo( tb );
              a->addTo( menu );
              

              }
              @
              And also for more actions..

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              • S Offline
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                Sam
                wrote on last edited by
                #13

                Are you including the proper header files , Try including QObject header and build.
                Also check for the proper signature of Q3Action class .

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                • G Offline
                  G Offline
                  gayu
                  wrote on last edited by
                  #14

                  Might what the question i'm asking is silly, but please tell me
                  Whether Qt4 support QAction

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                  • S Offline
                    S Offline
                    Sam
                    wrote on last edited by
                    #15

                    [quote author="gayu" date="1353403125"]Might what the question i'm asking is silly, but please tell me
                    Whether Qt4 support QAction[/quote]

                    Ofcourse Qt4 support QAction ,you can have a look in "Porting to Qt 4":http://qt-project.org/doc/qt-4.8/porting4.html#qaction and "QAction":http://qt-project.org/doc/qt-4.8/qaction.html class.

                    But why are you still working in Qt 3 ?

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                    • G Offline
                      G Offline
                      gayu
                      wrote on last edited by
                      #16

                      So when using Q3ToolBar and Q3PopupMenu, their actions must be Q3Actions.
                      Otherwise the QAction itself is used right.

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