How can interrupts be hooked systemwide

Posted by Legacy on 01/07/2002 12:00am

Originally posted by: Daniel Kumar

How can I hook an Interrupt systemwide? Whenever I hook an

Interrupt, it is limited to that program only. Is there any

way for hooking an Interrupt so that once it is hooked, all

programs should follow the new Interrupt Service Routine?

Please halp me in this.

Thanks,

Daniel

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unhook if already hooked by other application

Posted by Legacy on 12/26/2001 12:00am

Originally posted by: harshal

how to know that ur keyboard is already hooked & to unhook that what to do

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Compiling error.......

Posted by Legacy on 11/24/2001 12:00am

Originally posted by: Vijay Kumar Taduri

Please send me Psapi.h and Psapi.lib! 

i am getting complie error like this 

----------

Compiling...

hook.cpp

C:\samples\HookDemo\hook\hookdll\hook.cpp(7) : fatal error C1083: Cannot open include file: 'Psapi.h': No such file or directory

Error executing cl.exe.

hook.obj - 1 error(s), 0 warning(s)

---------------

Thanks! 

Vijay

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How to invalidate the ctrl+alt+del hotkey by using hook?

Posted by Legacy on 11/22/2001 12:00am

Originally posted by: smilecat

I have invalidated the alt+esc and alt+tab hotkeys by WH_KEYBOARD_LL hook under windows 2000, but failed to invalidate the ctrl+alt+del hotkey. How can I do that?

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the use of #pragma message("") and #pragma comment("")

Posted by Legacy on 10/12/2001 12:00am

Originally posted by: airman

i have looked up #pragma directive in msdn,i found it is not useful . please tell me its use and your idea.thanks

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RemoveHook() does not remove hook!

Posted by Legacy on 09/28/2001 12:00am

Originally posted by: Mark Bidar

Thanks Volker Bartheld for the nice post.

I noticed that if I click the remove button and then click

the set again, I will get two characters in the log edit

box for every character I type. I further noticed that in

RemoveHook function, we are setting the hook handle to NULL

prior to calling UnhooWindowsHookEx. Any way, here is the

corrected version of RemoveHook:

//

// hook remove function

//

BOOL RemoveHook()

  {

  BOOL bRet = (true);

  if(pData->g_hHook)                                                            // if the hook is defined

    {

    bRet = UnhookWindowsHookEx(pData->g_hHook);

    pData->g_hWnd       = NULL;                                                 // reset data

    pData->g_hHook      = NULL;

    }

  return bRet;

  }

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Hi, I am not getting the psapi.lib/psapi.h in my NT system.

Posted by Legacy on 08/06/2001 12:00am

Originally posted by: Girish

Hello sir,

I am not getting psapi.h/.lib in my system and the program is showing the error regarding this.

Can you provide this?
Thanks

Girish

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complie error

Posted by Legacy on 06/01/2001 12:00am

Originally posted by: AQuan

Please send me Psapi.h and Psapi.lib!
complie error :LINK : fatal error LNK1104: cannot open file "Psapi.lib"!
Thanks!
AQuan!

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Why can not be compied!

Posted by Legacy on 05/31/2001 12:00am

Originally posted by: Kingwood Liu

hook.cpp
E:\Down Load\VC\HookDemo\hook\hookdll\hook.cpp(7) : fatal error C1083: Cannot open include file: 'Psapi.h': No such file or directory
Error executing cl.exe.

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Why file mapping?

Posted by Legacy on 05/30/2001 12:00am

Originally posted by: Denis S.

Why file mapping? I think it would be easier to create shared data section to store g_hHook variable, etc using #pragma data_seg

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