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

CreateRemoteThread, or SuspendThread + GetThreadContext + SetThreadContext + ResumeThread + {wait} + SuspendThread + SetThreadContext + ResumeThread (NT is a lot easier than 9x - although you can of course use EliCZ' CreateRemoteThread emulation).

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)

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, ...

Can you post some example from IPC usage pls?
Thanx for the ideas.

Holdláng

this example shows how to execute code from other process, imho, very easy

ps. author - me