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Index > Windows > Calling a process from an other program.

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holdlang



Joined: 10 Aug 2004
Posts: 11
holdlang
HI.

I'm now makeing a little project but i have a problem.
I need to call a function from an other running exe file.

Any idea how can i do it?
I know i need to change the process attributes, i do it.
But how can i know the memory adress of the function in the other exe? I can found it's virtual adress with a debugger but how can i calculate the real address? Or i can call with hwnd somehow?

Any ideas pls?

Holdláng
Post 23 Apr 2005, 07:34
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
CreateRemoteThread, or SuspendThread + GetThreadContext + SetThreadContext + ResumeThread + {wait} + SuspendThread + SetThreadContext + ResumeThread (NT is a lot easier than 9x Razz - although you can of course use EliCZ' CreateRemoteThread emulation).
Post 23 Apr 2005, 11:18
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Madis731



Joined: 25 Sep 2003
Posts: 2140
Location: Estonia
Madis731
Wouldn't IPC be more convenient? Like when making threads you have two exes running at base 400000h and how do you address stuff - what is what, confusing I think ^o)
Post 23 Apr 2005, 13:23
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
Of course it depends on what you're doing - if you're in control of both applications, IPC is certainly the way to go. Pipes, Memory Mapped File, Shared section, mailslots, ...
Post 23 Apr 2005, 13:28
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holdlang



Joined: 10 Aug 2004
Posts: 11
holdlang
Can you post some example from IPC usage pls?
Thanx for the ideas.

Holdláng
Post 23 Apr 2005, 14:30
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Vasilev Vjacheslav



Joined: 11 Aug 2004
Posts: 392
Vasilev Vjacheslav
this example shows how to execute code from other process, imho, very easy

ps. author - me Smile


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Post 25 Apr 2005, 10:51
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