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  4. Problem while setting text to a control using WM_SETTEXT with SendMessage API

Problem while setting text to a control using WM_SETTEXT with SendMessage API

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  • P Offline
    P Offline
    PankajB
    wrote on last edited by
    #1

    Hi there. I am setting text for a control using below code...

    char buffer[MAX_PATH];
    char *message = "Hello";
    sprintf(buffer, "%s", message);
    ....
    ....
    HWND pWnd7 = ::FindWindowEx(pWnd6, NULL, L"TComboBox", NULL);
    ::SendMessage(pWnd7, WM_SETTEXT, 0, (LPARAM)buffer);

    Its setting some text but seems to be some garbage. i tnow its not garbase, but actually we are not able to properly convert buffer into LPARAM type i.e., (LPARAM)buffer). Please help me on this. Thanks PanB

    C 1 Reply Last reply
    0
    • P PankajB

      Hi there. I am setting text for a control using below code...

      char buffer[MAX_PATH];
      char *message = "Hello";
      sprintf(buffer, "%s", message);
      ....
      ....
      HWND pWnd7 = ::FindWindowEx(pWnd6, NULL, L"TComboBox", NULL);
      ::SendMessage(pWnd7, WM_SETTEXT, 0, (LPARAM)buffer);

      Its setting some text but seems to be some garbage. i tnow its not garbase, but actually we are not able to properly convert buffer into LPARAM type i.e., (LPARAM)buffer). Please help me on this. Thanks PanB

      C Offline
      C Offline
      CPallini
      wrote on last edited by
      #2

      PankajB wrote:

      char buffer[MAX_PATH]; char *message = "Hello"; sprintf(buffer, "%s", message); .... .... HWND pWnd7 = ::FindWindowEx(pWnd6, NULL, L"TComboBox", NULL); ::SendMessage(pWnd7, WM_SETTEXT, 0, (LPARAM)buffer);

      What about

      TCHAR buffer[] = _T("Hello");
      //...
      HWND hWnd7 = ::FindWindowEx(hWnd6, NULL, _T("TComboBox"), NULL);
      if ( hWnd7 ) ::SendMessage(hWnd7, WM_SETTEXT, 0 , (LPARAM) buffer);

      :)

      If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
      This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
      [My articles]

      S 1 Reply Last reply
      0
      • C CPallini

        PankajB wrote:

        char buffer[MAX_PATH]; char *message = "Hello"; sprintf(buffer, "%s", message); .... .... HWND pWnd7 = ::FindWindowEx(pWnd6, NULL, L"TComboBox", NULL); ::SendMessage(pWnd7, WM_SETTEXT, 0, (LPARAM)buffer);

        What about

        TCHAR buffer[] = _T("Hello");
        //...
        HWND hWnd7 = ::FindWindowEx(hWnd6, NULL, _T("TComboBox"), NULL);
        if ( hWnd7 ) ::SendMessage(hWnd7, WM_SETTEXT, 0 , (LPARAM) buffer);

        :)

        If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
        This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
        [My articles]

        S Offline
        S Offline
        safeer vengasseri
        wrote on last edited by
        #3

        try ............. SendMessage(hWnd7, WM_SETTEXT, (WPARAM)strlen(buffer) , (LPARAM) buffer); ...........

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