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  4. OnTimer function is killed automatically when the dialog is closed

OnTimer function is killed automatically when the dialog is closed

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  • S shanmugarajaa

    Hi, how to create "TIMERPROC".. Right now my application is developed using MCF. can you provide me any example code that may help me to resolve my problem. Regrads, S.Shanmugaraja

    D Offline
    D Offline
    David Crow
    wrote on last edited by
    #10

    shanmugarajaa wrote:

    how to create "TIMERPROC"..

    It's in the docs: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644901(v=vs.85).aspx#creating_timer[^]

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    • S shanmugarajaa

      But I am get error when i try to implement UINT_PTR timerId = ::SetTimer(0, 42, 1000, myOnTimer); in MFC VS6 ErrorReport:

      'SetTimer' : cannot convert parameter 4 from 'void (struct HWND__ *,unsigned int,unsigned long,unsigned long)' to 'void (__stdcall *)(struct HWND__ *,unsigned int,unsigned int,unsigned long)'

      B Offline
      B Offline
      bjorn_ht
      wrote on last edited by
      #11

      I wrote that example for VS 2008, looks like the callback signature has changed a little since VS6. Try to change it to

      void __stdcall myOnTimer(HWND hwnd, unsigned int uMsg, unsigned int idEvent, DWORD tickCount)
      {
      // ...
      }

      as the error message suggests. If you have an MSDN library with your VS then you should be able to find the correct callback function signature there. Maybe even an example.

      S 2 Replies Last reply
      0
      • B bjorn_ht

        I wrote that example for VS 2008, looks like the callback signature has changed a little since VS6. Try to change it to

        void __stdcall myOnTimer(HWND hwnd, unsigned int uMsg, unsigned int idEvent, DWORD tickCount)
        {
        // ...
        }

        as the error message suggests. If you have an MSDN library with your VS then you should be able to find the correct callback function signature there. Maybe even an example.

        S Offline
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        shanmugarajaa
        wrote on last edited by
        #12

        Thanks you so much.

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        • B bjorn_ht

          I wrote that example for VS 2008, looks like the callback signature has changed a little since VS6. Try to change it to

          void __stdcall myOnTimer(HWND hwnd, unsigned int uMsg, unsigned int idEvent, DWORD tickCount)
          {
          // ...
          }

          as the error message suggests. If you have an MSDN library with your VS then you should be able to find the correct callback function signature there. Maybe even an example.

          S Offline
          S Offline
          shanmugarajaa
          wrote on last edited by
          #13

          Hi code working good.. but I cant able to kill this timer... can you help to kill this call.. Regards, S.Shanmugaraja

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          • S shanmugarajaa

            Hi code working good.. but I cant able to kill this timer... can you help to kill this call.. Regards, S.Shanmugaraja

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            bjorn_ht
            wrote on last edited by
            #14

            You just call ::KillTimer(0, timerId); where timerId is the timer id value you got back from ::SetTimer.

            S 3 Replies Last reply
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            • B bjorn_ht

              You just call ::KillTimer(0, timerId); where timerId is the timer id value you got back from ::SetTimer.

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              shanmugarajaa
              wrote on last edited by
              #15

              Thanks Thanks so much :)

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              • B bjorn_ht

                You just call ::KillTimer(0, timerId); where timerId is the timer id value you got back from ::SetTimer.

                S Offline
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                shanmugarajaa
                wrote on last edited by
                #16

                Hi, I am beginner to MFC application. I need your suggestion to improve my skill in MFC. How you come know about __stdcall and other functionality of MFC. Any material you have been using? kindly share your views and ideas. It may help me to improve my MFC skills. I am looking forward your valuable suggestion. Regards, S.Shanmugaraja

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                • B bjorn_ht

                  You just call ::KillTimer(0, timerId); where timerId is the timer id value you got back from ::SetTimer.

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                  shanmugarajaa
                  wrote on last edited by
                  #17

                  Hi, I am Calling CapWatchID: = ::SetTimer(SetTimer(0, 42, 1000, CaptureStopWatchT); and after sometime I killed this running timer using ::KillTimer(0, CapWatchID);. But the problem is, when I start the same timer again then Updation time became lessthan 1000 millisecond. Why its happing like this. kindly help me to fix this problem. Regards, S.Shanmugaraja.

                  B 1 Reply Last reply
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                  • S shanmugarajaa

                    Hi, I am beginner to MFC application. I need your suggestion to improve my skill in MFC. How you come know about __stdcall and other functionality of MFC. Any material you have been using? kindly share your views and ideas. It may help me to improve my MFC skills. I am looking forward your valuable suggestion. Regards, S.Shanmugaraja

                    B Offline
                    B Offline
                    bjorn_ht
                    wrote on last edited by
                    #18

                    This is not MFC as such. SetTimer and KillTimer Windows system functions documented by Microsoft. http://msdn.microsoft.com/library/default.aspx[^] There are many good books and online resources on the subject of C++ programming, Windows system programming and MFC. I suggest you try searching the net for recommendations and book reviews.

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                    • S shanmugarajaa

                      Hi, I am Calling CapWatchID: = ::SetTimer(SetTimer(0, 42, 1000, CaptureStopWatchT); and after sometime I killed this running timer using ::KillTimer(0, CapWatchID);. But the problem is, when I start the same timer again then Updation time became lessthan 1000 millisecond. Why its happing like this. kindly help me to fix this problem. Regards, S.Shanmugaraja.

                      B Offline
                      B Offline
                      bjorn_ht
                      wrote on last edited by
                      #19

                      I have not observed similar behavior so I'm afraid I can't help with that. Also please note that the number 42 as second parameter to SetTimer in my example was chosen randomly. Probably, it would be more correct in your context to use the value 0.

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