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Solved

the command to shutdown or close active application

Posted on 2004-10-14
7
322 Views
Last Modified: 2010-04-05

Please show me the command to shutdow window. that command for shutdown depends on version of window ?

Or the command to close the active application on window.

Because i want something to appear when they use my program but not register
0
Comment
Question by:namcit99
7 Comments
 
LVL 14

Accepted Solution

by:
DragonSlayer earned 20 total points
ID: 12316664
send the window a WM_QUIT or WM_Close message... e.g.

PostMessage(GetActiveWindow, WM_QUIT, 0, 0);
0
 

Author Comment

by:namcit99
ID: 12316761

It is Ok.

I just read the document about this command at Windows SDK in Delphi 7 Document.

Is it enough ?  I do not see the 'GetactiveWindow' . Where could i read more about this command
0
 
LVL 3

Expert Comment

by:smot
ID: 12317609
The GetActiveWindow function retrieves the window handle to the active window attached
to the calling thread's message queue.

For further information go to:
http://msdn.microsoft.com/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/KeyboardInput/KeyboardInputReference/KeyboardInputFunctions/GetActiveWindow.asp

- Or the command to close the active application on window.

procedure KillProcess(hWindowHandle: HWND);
var
  hprocessID: INTEGER;
  processHandle: THandle;
  DWResult: DWORD;
begin
  SendMessageTimeout(hWindowHandle, WM_CLOSE, 0, 0,
    SMTO_ABORTIFHUNG or SMTO_NORMAL, 5000, DWResult);

  if isWindow(hWindowHandle) then
  begin
    // PostMessage(hWindowHandle, WM_QUIT, 0, 0);

    { Get the process identifier for the window}
    GetWindowThreadProcessID(hWindowHandle, @hprocessID);
    if hprocessID <> 0 then
    begin
      { Get the process handle }
      processHandle := OpenProcess(PROCESS_TERMINATE or PROCESS_QUERY_INFORMATION,
        False, hprocessID);
      if processHandle <> 0 then
      begin
        { Terminate the process }
        TerminateProcess(processHandle, 0);
        CloseHandle(ProcessHandle);
      end;
    end;
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  KillProcess(FindWindow('notepad',nil));
end;

- Please show me the command to shutdow window.

Do u mean shutdown Windows??

function MyExitWindows(RebootParam: Longword): Boolean;
var
  TTokenHd: THandle;
  TTokenPvg: TTokenPrivileges;
  cbtpPrevious: DWORD;
  rTTokenPvg: TTokenPrivileges;
  pcbtpPreviousRequired: DWORD;
  tpResult: Boolean;
const
  SE_SHUTDOWN_NAME = 'SeShutdownPrivilege';
begin
  if Win32Platform = VER_PLATFORM_WIN32_NT then
  begin
    tpResult := OpenProcessToken(GetCurrentProcess(),
      TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY,
      TTokenHd);
    if tpResult then
    begin
      tpResult := LookupPrivilegeValue(nil,
                                       SE_SHUTDOWN_NAME,
                                       TTokenPvg.Privileges[0].Luid);
      TTokenPvg.PrivilegeCount := 1;
      TTokenPvg.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED;
      cbtpPrevious := SizeOf(rTTokenPvg);
      pcbtpPreviousRequired := 0;
      if tpResult then
        Windows.AdjustTokenPrivileges(TTokenHd,
                                      False,
                                      TTokenPvg,
                                      cbtpPrevious,
                                      rTTokenPvg,
                                      pcbtpPreviousRequired);
    end;
  end;
  Result := ExitWindowsEx(RebootParam, 0);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  MyExitWindows(EWX_POWEROFF or EWX_FORCE);
end;
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LVL 12

Expert Comment

by:Ivanov_G
ID: 12318085
procedure TForm1.Button1Click(Sender: TObject);
var
  AA_Handle    : HWND;  // Active Application Handle
begin
  // get the handle
  AA_Handle := GetActiveWindow;
  // close it
  SendMessage(AA_Handle, WM_CLOSE, 0, 0);
end;
0
 
LVL 12

Expert Comment

by:Ivanov_G
ID: 12318104
If you want to know when the system is being rebooted/shut down, you should handle WM_QUERYENDSESSION and WM_ENDSESSION which are sent to all running applications...
0
 
LVL 5

Expert Comment

by:Hypoviax
ID: 12331029
Haha,

Are we talking about ahutting down windows, closing windows (as in program windows) or closing apps?

For Closing programwindows:

          postmessage(findwindow(nil,'The Window Caption here'),wm_close,0,0);

For Shutting down windows:

          windows.InitiateSystemShutdown(pchar('127.0.0.1'),pchar('Windows in shutting down'),1,false,false);

For Closing applications:

           function KillTask(ExeFileName: string): integer;
 const  //Kills a process by exename
 PROCESS_TERMINATE=$0001;
 var
 ContinueLoop: BOOLEAN;
 FSnapshotHandle: THandle;
 FProcessEntry32: TProcessEntry32;
             begin
              //      result := 0;
                   FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
                   FProcessEntry32.dwSize := Sizeof(FProcessEntry32);
                   ContinueLoop := Process32First(FSnapshotHandle,FProcessEntry32);

 while integer(ContinueLoop) <> 0 do
 begin
             if ((UpperCase(ExtractFileName(FProcessEntry32.szExeFile)) =UpperCase(ExeFileName))
             or (UpperCase(FProcessEntry32.szExeFile) =
             UpperCase(ExeFileName))) then
             Result := Integer(TerminateProcess(OpenProcess(PROCESS_TERMINATE, BOOL(0),FProcessEntry32.th32ProcessID), 0));
                ContinueLoop := Process32Next(FSnapshotHandle,
              FProcessEntry32);
 end;
 CloseHandle(FSnapshotHandle);
end;

Example:

killtask('notepad.exe');

Best Regards,

Hypoviax
0
 

Author Comment

by:namcit99
ID: 12336079

Thank for all consider
0

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