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OnKeyPress oddity

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  • J James T Johnson

    Ensure that IsInputKey/Char returns true for that key; if it returns false you won't get the OnKey* events. James Simplicity Rules!

    N Offline
    N Offline
    Nish Nishant
    wrote on last edited by
    #5

    I did this :-

    protected override bool IsInputKey(System.Windows.Forms.Keys keyData)
    {
    base.IsInputKey(keyData);
    return true;
    }

    But still OnKeyPress never gets called! Nish


    Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

    R 1 Reply Last reply
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    • N Nish Nishant

      I did this :-

      protected override bool IsInputKey(System.Windows.Forms.Keys keyData)
      {
      base.IsInputKey(keyData);
      return true;
      }

      But still OnKeyPress never gets called! Nish


      Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

      R Offline
      R Offline
      Rama Krishna Vavilala
      wrote on last edited by
      #6

      Use Anakrino. When you have anakrino you don't need to ask any quetions anywhere.:)

      N 2 Replies Last reply
      0
      • R Rama Krishna Vavilala

        Use Anakrino. When you have anakrino you don't need to ask any quetions anywhere.:)

        N Offline
        N Offline
        Nish Nishant
        wrote on last edited by
        #7

        Rama Krishna wrote: Use Anakrino. When you have anakrino you don't need to ask any quetions anywhere How do I use Anakrino in this situation, Rama? My problem is that a handler is not getting called in the derived class despite the fact that I have overridden it :-( Nish


        Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

        1 Reply Last reply
        0
        • R Rama Krishna Vavilala

          Use Anakrino. When you have anakrino you don't need to ask any quetions anywhere.:)

          N Offline
          N Offline
          Nish Nishant
          wrote on last edited by
          #8

          I overrode WndProc and found that the WM_KEYDOWN message is not being received :-(

          protected override void WndProc(ref System.Windows.Forms.Message m)
          {
          base.WndProc(ref m);
          if(m.Msg == 0x0100)
          Text = "Hello World";
          }

          Nish p.s. In an MC++ program I can #include windows.h to get the defines for various messages, in a C# program how do I get the defines for messages. Above I have hardcoded 0x0100 [WM_KEYDOWN]


          Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

          J R 2 Replies Last reply
          0
          • N Nish Nishant

            I am deriving a class from ComboBox. I override OnKeyPress. But OnKeyPress never gets called! Anyone knows whether there is anything special I need to be doing? Nish


            Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

            N Offline
            N Offline
            Nish Nishant
            wrote on last edited by
            #9

            Blast! Just found out that this is a bug in both beta 1 and beta 2 Nish p.s. Gotta try this from home now :mad:


            Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

            1 Reply Last reply
            0
            • N Nish Nishant

              I overrode WndProc and found that the WM_KEYDOWN message is not being received :-(

              protected override void WndProc(ref System.Windows.Forms.Message m)
              {
              base.WndProc(ref m);
              if(m.Msg == 0x0100)
              Text = "Hello World";
              }

              Nish p.s. In an MC++ program I can #include windows.h to get the defines for various messages, in a C# program how do I get the defines for messages. Above I have hardcoded 0x0100 [WM_KEYDOWN]


              Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

              J Offline
              J Offline
              James T Johnson
              wrote on last edited by
              #10

              Find in Files for WM_KEYDOWN ;P There are a couple programs out there which will let you get the constants but I find it much easier to just do a Find in Files. James Simplicity Rules!

              N 1 Reply Last reply
              0
              • N Nish Nishant

                I overrode WndProc and found that the WM_KEYDOWN message is not being received :-(

                protected override void WndProc(ref System.Windows.Forms.Message m)
                {
                base.WndProc(ref m);
                if(m.Msg == 0x0100)
                Text = "Hello World";
                }

                Nish p.s. In an MC++ program I can #include windows.h to get the defines for various messages, in a C# program how do I get the defines for messages. Above I have hardcoded 0x0100 [WM_KEYDOWN]


                Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                R Offline
                R Offline
                Rama Krishna Vavilala
                wrote on last edited by
                #11

                Incidentally there was a discussion about this in one of my articles Link Don't use WndProc, use PreProcessMessage.

                N 1 Reply Last reply
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                • N Nish Nishant

                  Rama Krishna wrote: Incidentally there was a discussion about this in one of my articles Link Thanks. Checked it out! Nish


                  Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                  R Offline
                  R Offline
                  Rama Krishna Vavilala
                  wrote on last edited by
                  #12

                  How your article works. I see that OnKeyPress is getting called. :) Ofcourse highlighting text by mouse doesnot work in your combo box. :(

                  N 1 Reply Last reply
                  0
                  • J James T Johnson

                    Find in Files for WM_KEYDOWN ;P There are a couple programs out there which will let you get the constants but I find it much easier to just do a Find in Files. James Simplicity Rules!

                    N Offline
                    N Offline
                    Nish Nishant
                    wrote on last edited by
                    #13

                    James T. Johnson wrote: Find in Files for WM_KEYDOWN Blast!!! Of all things, a Jambo joke!!! Boooohhhhhhhhh! We don't want Jambo jokes! Booooooooooo! We want jambo-edited articles ;-) Nish


                    Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                    J 1 Reply Last reply
                    0
                    • R Rama Krishna Vavilala

                      Incidentally there was a discussion about this in one of my articles Link Don't use WndProc, use PreProcessMessage.

                      N Offline
                      N Offline
                      Nish Nishant
                      wrote on last edited by
                      #14

                      Rama Krishna wrote: Incidentally there was a discussion about this in one of my articles Link Thanks. Checked it out! Nish


                      Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                      R 1 Reply Last reply
                      0
                      • N Nish Nishant

                        James T. Johnson wrote: Find in Files for WM_KEYDOWN Blast!!! Of all things, a Jambo joke!!! Boooohhhhhhhhh! We don't want Jambo jokes! Booooooooooo! We want jambo-edited articles ;-) Nish


                        Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                        J Offline
                        J Offline
                        James T Johnson
                        wrote on last edited by
                        #15

                        Nish - Native CPian wrote: We want jambo-edited articles I'll get back to editing once I figure out what has caused me headaches the past 2 days. James Simplicity Rules!

                        1 Reply Last reply
                        0
                        • R Rama Krishna Vavilala

                          How your article works. I see that OnKeyPress is getting called. :) Ofcourse highlighting text by mouse doesnot work in your combo box. :(

                          N Offline
                          N Offline
                          Nish Nishant
                          wrote on last edited by
                          #16

                          Rama Krishna wrote: How your article works It was a bug with beta 2. OnKeyPress won't get called in beta 2 :-) Rama Krishna wrote: Ofcourse highlighting text by mouse doesnot work in your combo box Huh? It does here :confused: Nish


                          Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                          R 1 Reply Last reply
                          0
                          • N Nish Nishant

                            Rama Krishna wrote: How your article works It was a bug with beta 2. OnKeyPress won't get called in beta 2 :-) Rama Krishna wrote: Ofcourse highlighting text by mouse doesnot work in your combo box Huh? It does here :confused: Nish


                            Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                            R Offline
                            R Offline
                            Rama Krishna Vavilala
                            wrote on last edited by
                            #17

                            Nish - Native CPian wrote: It was a bug with beta 2. OnKeyPress won't get called in beta 2 I got it. I thought that it was still a bug:) Nish - Native CPian wrote: Huh? It does here Sorry It doesnot work for me. BTW don't you love the rating you got for the new article.

                            N 1 Reply Last reply
                            0
                            • R Rama Krishna Vavilala

                              Nish - Native CPian wrote: It was a bug with beta 2. OnKeyPress won't get called in beta 2 I got it. I thought that it was still a bug:) Nish - Native CPian wrote: Huh? It does here Sorry It doesnot work for me. BTW don't you love the rating you got for the new article.

                              N Offline
                              N Offline
                              Nish Nishant
                              wrote on last edited by
                              #18

                              Rama Krishna wrote: BTW don't you love the rating you got for the new article. Yeah, about twice as much as my usual :-) Nish


                              Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

                              1 Reply Last reply
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