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Closing Internet Explorer (IE) from Delphi


comments8 comments. Current rating: 5 stars (1 votes). Leave comments and/ or rate it.


My application has to close the IE. How can an application close the Internet Explorer or an Explorer window?


The key is to post to the *right* window. Use the code below and it will close all instances of IE.

program Sample;

function CloseIEs(Wnd : HWnd; Form : TForm1) : Boolean; export; stdcall;
  sCap : array [0..255] of char;
  GetWindowText (Wnd, sCap, sizeof(sCap));
  if pos ('Microsoft Internet Explorer', sCap) > 0 then
    PostMessage (Wnd, WM_CLOSE, 0, 0);
    // check by class name!
    GetClassName (Wnd, sCap, sizeof(sCap));
    if sCap = 'IEFrame' then
      PostMessage (Wnd, WM_CLOSE, 0, 0);

  CloseIEs := true; { next window, please }

  // close all hidden instances
  EnumWindows(@CloseIEs, 0);
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2006-11-15, 08:36:31
hunter from China  
so good!
2008-08-26, 08:28:06
anonymous from Finland  

I have not tested this, but I suspect the code above has a dangerous bug - maybe it will close not only every instance of MS-Internet explorer, but also any TWebBrowser component that is on any form included in any Delphi -made program !

Since it is not normal to close individual components in a running Delphi -program, this may cause severe malfunction in any delphi-application affected.

especially I find this one suspicious:

// check by class name!
GetClassName (Wnd, sCap, sizeof(sCap));
if sCap = 'IEFrame' then
PostMessage (Wnd, WM_CLOSE, 0, 0);

Myself, I would use the EnumWindows API call instead.
it requires a callback function, but defining your callback with the stdcall directive should make that no problem at all.

2009-05-22, 05:32:42
anonymous from Belarus  
пиздец, нихуя не понятно
2009-05-22, 08:59:43
anonymous from United States  
Belarus, these articles are well beyond your tiny little brain, or your translator capability. Stop insulting authors here and go back to what you do best.
2010-01-13, 15:49:40
anonymous from Moldova  
2011-12-28, 05:33:44
Внатуре заебленная хуета какаето
2013-11-01, 03:11:09   (updated: 2013-11-01, 03:11:42)
leveni from Potts Point, Australia  
I've tried it and it works really well. Fantastic programming.
2014-02-17, 07:39:42
anonymous from Netherlands  
ignore that warning, works great even with twebbrowsers



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