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Hiding a Proccess

Posted on 2004-03-26
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Last Modified: 2010-04-05
Dear Masters

I want to know that how i can hide a proccess in Windows XP in "Windows Task Manager" Window, also when the user terminates a proccess our program can detect it if or not.in other words is there an event when a proccess is being terminated, i have tested WM_DESTROY and WM_NCDESTROY, none of them work!!!

thank you in advance for your information
Sincirely Yours
Milad
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Question by:miladyyy
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6 Comments
 
LVL 17

Accepted Solution

by:
mokule earned 25 total points
ID: 10693906
It should hide it
procedure TForm1.FormCreate(Sender: TObject);
var
  h: HWND;
begin
  h := Application.Handle;
  SetWindowLong(h, GWL_EXSTYLE,GetWindowLong(h, GWL_EXSTYLE) or            WS_EX_TOOLWINDOW);
end;
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LVL 17

Expert Comment

by:mokule
ID: 10693927
May be this helps something, but it is not fired when terminating from task manager.

In the main application Form
procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
  CanClose := (Application.MessageBox(PChar('Terminate?'),PChar('Decide'),MB_YESNO) = IDYES);
end;

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LVL 14

Assisted Solution

by:DragonSlayer
DragonSlayer earned 25 total points
ID: 10697717
goto www.madshi.net and check out madshi's example on API hooking... it will show how to make it so that your process can't be terminated via TerminateProcess
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