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hisense's avatar
hisense
Occasional Contributor
6 years ago

How to block keyboard when script running?

How to block keyboard when script running?
  • AlexKaras's avatar
    AlexKaras
    6 years ago

    Hi,

     

    Does this help?

    (Note: ages old DelphiScript code that might not work in modern TestComplete and/or Windows and I think that you definitely must consider bitness as described here: https://support.smartbear.com/testcomplete/docs/testing-with/advanced/using-external-functions/calling-from-dll/specifics-of-32-and-64-bit-dlls.html)

     
    //-------------------------------------------------------------------------------
    // Blocks keyboard and mouse input events from reaching applications.
    // Function's effect can be cancelled by pressing Ctrl-Alt-Del
    procedure StopKeyMouse;
    var Def_DLL;
    var Def_Proc;
    var Lib;
    begin
        Def_DLL := DLL.DefineDLL('USER32');
        Def_Proc := Def_DLL.DefineProc('BlockInput', vt_b1, vt_b1);
        Lib := DLL.Load('USER32.DLL', 'USER32');
        Lib.BlockInput(true);
    end;
    //-------------------------------------------------------------------------------
     
    // Unblocks keyboard and mouse input events from reaching applications.
    procedure ResumeKeyMouse;
    var Def_DLL;
    var Def_Proc;
    var Lib;
    begin
        Def_DLL := DLL.DefineDLL('USER32');
        Def_Proc := Def_DLL.DefineProc('BlockInput', vt_b1, vt_b1);
        Lib := DLL.Load('USER32.DLL', 'USER32');
        Lib.BlockInput(false);
    end;
    //-------------------------------------------------------------------------------
     
hisense's avatar
hisense
Occasional Contributor
I do NOT think so.Without keyboard,the scripts can work normally.Any guy can show a code sample?Thanks advance!
tristaanogre's avatar
tristaanogre
Esteemed Contributor
6 years ago

Right, without a physical keyboard hooked up, it will still work.  However, TestComplete "takes over" the UI input on the operating system while it's executing so any keystrokes ore mouse actions done while the automation is running will interfere.

  • hisense's avatar
    hisense
    Occasional Contributor
    6 years ago



    the following ppython code sample dose NOT work in TestComplete ,why?
    import time
    from ctypes import *
    user32 = windll.LoadLibrary('user32.dll')
    user32.BlockInput(True);
    time.sleep(10);
    user32.BlockInput(False);
    • tristaanogre's avatar
      tristaanogre
      Esteemed Contributor
      6 years ago

      Define "does not work"? Where is the error?  What error message are you getting?

       

      Again... TestComplete needs to be able to interact with the objects on screen.  It needs to be able to simulate keyboard and mouse events and it does so using the operating system.  What is your purpose behind wanting to block the keyboard?  What are you trying to achieve?  Perhaps there is a better way. 

      • hisense's avatar
        hisense
        Occasional Contributor
        6 years ago
        Below is my answer: 1、There is no error message when running the code,it just sleep 10 seconds but the physical keyboard still can input. 2、I want to block physical keyboard input to avoid unexpected input when the scripts running. 3、TestComplete can work fine even no physical keybaord attached, so if I blocked keyboard input,it can simulate normally.