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  4. [SOLVED] Conversion from ascci to char in QML
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[SOLVED] Conversion from ascci to char in QML

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  • Pradeep KumarP Pradeep Kumar

    Hello ,

    I have Text Input and virtual Keyboard, i want value to be entered in text input, but im getting ascii values of (letters,numbers) in text inout when i press the letters, numbers in keyboard, so i want same letter to be entered in text input as in keyboard, ex: if i click Letter "P","p" i need to get Letter "P","p" in my text input,

    so please help me guys.

    p3c0P Offline
    p3c0P Offline
    p3c0
    Moderators
    wrote on last edited by
    #2

    Hi @Pradeep-Kumar.M,
    Use String.fromCharCode to convert code to character and then use insert to add that character to TextInput.

    157

    Pradeep KumarP 2 Replies Last reply
    1
    • p3c0P p3c0

      Hi @Pradeep-Kumar.M,
      Use String.fromCharCode to convert code to character and then use insert to add that character to TextInput.

      Pradeep KumarP Offline
      Pradeep KumarP Offline
      Pradeep Kumar
      wrote on last edited by
      #3

      @p3c0

      Thank you it worked,,

      but when i press caps lock depending on capital "P" or small "p", it has to print,
      but for caps or small im getting "P" itself

      my code:

      Keys.onPressed:
      {

              if(event.key === Qt.Key_P)
              {
                  console.log("zero is pressed"+String.fromCharCode(Qt.Key_P));
                  textin.insert(0,String.fromCharCode(Qt.Key_P))
              }
          }
      

      textin is id for textinput;
      help me

      Pradeep Kumar
      Qt,QML Developer

      p3c0P 2 Replies Last reply
      0
      • Pradeep KumarP Pradeep Kumar

        @p3c0

        Thank you it worked,,

        but when i press caps lock depending on capital "P" or small "p", it has to print,
        but for caps or small im getting "P" itself

        my code:

        Keys.onPressed:
        {

                if(event.key === Qt.Key_P)
                {
                    console.log("zero is pressed"+String.fromCharCode(Qt.Key_P));
                    textin.insert(0,String.fromCharCode(Qt.Key_P))
                }
            }
        

        textin is id for textinput;
        help me

        p3c0P Offline
        p3c0P Offline
        p3c0
        Moderators
        wrote on last edited by
        #4

        @Pradeep-Kumar.M Because it doesn't distinguish between them. Here's more info. You will need to use event.text as described in combination with modifiers I guess.

        157

        Pradeep KumarP 1 Reply Last reply
        0
        • Pradeep KumarP Pradeep Kumar

          @p3c0

          Thank you it worked,,

          but when i press caps lock depending on capital "P" or small "p", it has to print,
          but for caps or small im getting "P" itself

          my code:

          Keys.onPressed:
          {

                  if(event.key === Qt.Key_P)
                  {
                      console.log("zero is pressed"+String.fromCharCode(Qt.Key_P));
                      textin.insert(0,String.fromCharCode(Qt.Key_P))
                  }
              }
          

          textin is id for textinput;
          help me

          p3c0P Offline
          p3c0P Offline
          p3c0
          Moderators
          wrote on last edited by
          #5

          @Pradeep-Kumar.M That being said you don't need conversion at all. Just use event.text for getting exact character and then insert. Just watch out for other key press (like shift or caps lock) which you will have to ignore.

          157

          Pradeep KumarP 1 Reply Last reply
          0
          • p3c0P p3c0

            @Pradeep-Kumar.M That being said you don't need conversion at all. Just use event.text for getting exact character and then insert. Just watch out for other key press (like shift or caps lock) which you will have to ignore.

            Pradeep KumarP Offline
            Pradeep KumarP Offline
            Pradeep Kumar
            wrote on last edited by
            #6

            @p3c0
            Keys.onPressed:
            {

                    if(event.text)
                    {
                        console.log("zero is pressed");
            
                        textin.insert(0,String.fromCharCode(Keys))
                    }
                }
            

            is this code k,
            because when i press any keys its getting printed in application output

            but i need in text input.

            Pradeep Kumar
            Qt,QML Developer

            p3c0P 1 Reply Last reply
            0
            • Pradeep KumarP Pradeep Kumar

              @p3c0
              Keys.onPressed:
              {

                      if(event.text)
                      {
                          console.log("zero is pressed");
              
                          textin.insert(0,String.fromCharCode(Keys))
                      }
                  }
              

              is this code k,
              because when i press any keys its getting printed in application output

              but i need in text input.

              p3c0P Offline
              p3c0P Offline
              p3c0
              Moderators
              wrote on last edited by
              #7

              @Pradeep-Kumar.M No conversion required now. Try

              Keys.onPressed:
              {
                  textin.insert(0,event.text)
              }
              

              157

              1 Reply Last reply
              0
              • p3c0P p3c0

                @Pradeep-Kumar.M Because it doesn't distinguish between them. Here's more info. You will need to use event.text as described in combination with modifiers I guess.

                Pradeep KumarP Offline
                Pradeep KumarP Offline
                Pradeep Kumar
                wrote on last edited by
                #8

                @p3c0

                its working fine, thank u for that,
                but in text input, its not appending, its getting from right to left, i want from left to right.

                Pradeep Kumar
                Qt,QML Developer

                p3c0P 1 Reply Last reply
                0
                • Pradeep KumarP Pradeep Kumar

                  @p3c0

                  its working fine, thank u for that,
                  but in text input, its not appending, its getting from right to left, i want from left to right.

                  p3c0P Offline
                  p3c0P Offline
                  p3c0
                  Moderators
                  wrote on last edited by
                  #9

                  @Pradeep-Kumar.M Are you using Arabic language or Arabic locale ? In that case it will be aligned to right side.

                  157

                  Pradeep KumarP 1 Reply Last reply
                  0
                  • p3c0P p3c0

                    @Pradeep-Kumar.M Are you using Arabic language or Arabic locale ? In that case it will be aligned to right side.

                    Pradeep KumarP Offline
                    Pradeep KumarP Offline
                    Pradeep Kumar
                    wrote on last edited by
                    #10

                    @p3c0

                    no, in text input its printing, which ever key is pressed, but not in appending fashion

                    ex: if i press 1234567890abcdefgh

                    its printing in text input as hgfedcba0987654321

                    i want in 1234567890abcdefgh

                    Pradeep Kumar
                    Qt,QML Developer

                    p3c0P 1 Reply Last reply
                    0
                    • Pradeep KumarP Pradeep Kumar

                      @p3c0

                      no, in text input its printing, which ever key is pressed, but not in appending fashion

                      ex: if i press 1234567890abcdefgh

                      its printing in text input as hgfedcba0987654321

                      i want in 1234567890abcdefgh

                      p3c0P Offline
                      p3c0P Offline
                      p3c0
                      Moderators
                      wrote on last edited by
                      #11

                      @Pradeep-Kumar.M Ofcourse it will. You are inserting every new character at 0'th position.

                      157

                      1 Reply Last reply
                      1
                      • p3c0P p3c0

                        Hi @Pradeep-Kumar.M,
                        Use String.fromCharCode to convert code to character and then use insert to add that character to TextInput.

                        Pradeep KumarP Offline
                        Pradeep KumarP Offline
                        Pradeep Kumar
                        wrote on last edited by
                        #12

                        @p3c0

                        so what to do if i want in appending fashion of letters, numbers, any other keys from keyboard, to text input

                        Pradeep Kumar
                        Qt,QML Developer

                        p3c0P 1 Reply Last reply
                        0
                        • Pradeep KumarP Pradeep Kumar

                          @p3c0

                          so what to do if i want in appending fashion of letters, numbers, any other keys from keyboard, to text input

                          p3c0P Offline
                          p3c0P Offline
                          p3c0
                          Moderators
                          wrote on last edited by
                          #13

                          @Pradeep-Kumar.M Get the new index position from TextInput. You want it to append it at the end so length should give you the last index. Insert it there

                          textin.insert(textin.length,event.text)
                          

                          157

                          Pradeep KumarP 1 Reply Last reply
                          1
                          • p3c0P p3c0

                            @Pradeep-Kumar.M Get the new index position from TextInput. You want it to append it at the end so length should give you the last index. Insert it there

                            textin.insert(textin.length,event.text)
                            
                            Pradeep KumarP Offline
                            Pradeep KumarP Offline
                            Pradeep Kumar
                            wrote on last edited by
                            #14

                            @p3c0

                            thank you, it worked.

                            Pradeep Kumar
                            Qt,QML Developer

                            p3c0P 1 Reply Last reply
                            0
                            • Pradeep KumarP Pradeep Kumar

                              @p3c0

                              thank you, it worked.

                              p3c0P Offline
                              p3c0P Offline
                              p3c0
                              Moderators
                              wrote on last edited by
                              #15

                              @Pradeep-Kumar.M You're Welcome :)

                              157

                              Pradeep KumarP 1 Reply Last reply
                              1
                              • p3c0P p3c0

                                @Pradeep-Kumar.M You're Welcome :)

                                Pradeep KumarP Offline
                                Pradeep KumarP Offline
                                Pradeep Kumar
                                wrote on last edited by
                                #16

                                @p3c0

                                one more question

                                i tries Qt Integration

                                here is ex: of main.cpp

                                QQmlApplicationEngine engine;
                                engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
                                QObject *topLevel = engine.rootObjects().value(0);
                                QQuickWindow *window = qobject_cast<QQuickWindow *>(topLevel);
                                window->dumpObjectTree();
                                QQuickWindow *window1 = topLevel->findChild<QQuickWindow * >(objectname);

                                can i have QQMLContext, QQMLComponent & QQMLEngine,
                                if so
                                can u provide code of it, along with component item.

                                Pradeep Kumar
                                Qt,QML Developer

                                p3c0P 1 Reply Last reply
                                0
                                • Pradeep KumarP Pradeep Kumar

                                  @p3c0

                                  one more question

                                  i tries Qt Integration

                                  here is ex: of main.cpp

                                  QQmlApplicationEngine engine;
                                  engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
                                  QObject *topLevel = engine.rootObjects().value(0);
                                  QQuickWindow *window = qobject_cast<QQuickWindow *>(topLevel);
                                  window->dumpObjectTree();
                                  QQuickWindow *window1 = topLevel->findChild<QQuickWindow * >(objectname);

                                  can i have QQMLContext, QQMLComponent & QQMLEngine,
                                  if so
                                  can u provide code of it, along with component item.

                                  p3c0P Offline
                                  p3c0P Offline
                                  p3c0
                                  Moderators
                                  wrote on last edited by
                                  #17

                                  @Pradeep-Kumar.M Do you mean an example ?

                                  157

                                  Pradeep KumarP 1 Reply Last reply
                                  0
                                  • p3c0P p3c0

                                    @Pradeep-Kumar.M Do you mean an example ?

                                    Pradeep KumarP Offline
                                    Pradeep KumarP Offline
                                    Pradeep Kumar
                                    wrote on last edited by
                                    #18

                                    @p3c0

                                    yeah but
                                    to replace the lines above which i sent in previous post

                                    Pradeep Kumar
                                    Qt,QML Developer

                                    p3c0P 1 Reply Last reply
                                    0
                                    • Pradeep KumarP Pradeep Kumar

                                      @p3c0

                                      yeah but
                                      to replace the lines above which i sent in previous post

                                      p3c0P Offline
                                      p3c0P Offline
                                      p3c0
                                      Moderators
                                      wrote on last edited by
                                      #19

                                      @Pradeep-Kumar.M Here's an example.

                                      157

                                      Pradeep KumarP 1 Reply Last reply
                                      1
                                      • p3c0P p3c0

                                        @Pradeep-Kumar.M Here's an example.

                                        Pradeep KumarP Offline
                                        Pradeep KumarP Offline
                                        Pradeep Kumar
                                        wrote on last edited by
                                        #20

                                        @p3c0

                                        for wat exactly setcontextproperty is used

                                        Pradeep Kumar
                                        Qt,QML Developer

                                        p3c0P 1 Reply Last reply
                                        0
                                        • Pradeep KumarP Pradeep Kumar

                                          @p3c0

                                          for wat exactly setcontextproperty is used

                                          p3c0P Offline
                                          p3c0P Offline
                                          p3c0
                                          Moderators
                                          wrote on last edited by
                                          #21

                                          @Pradeep-Kumar.M To expose C++ objects to QML.

                                          157

                                          Pradeep KumarP 1 Reply Last reply
                                          1

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