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How to run a process from an other probgram.
Posted: Sat Apr 23, 2005 1:13 am
by Holdlang
How can i run a process from an other program? I have the memory adress where the process is starting, but when i try to CallFuntionFast($adress) it, i get an acces vioalation error.
i try this:
Code: Select all
Procedure VirtualProtectExMY(hwnd, adress, size.l)
CallFunction (#PROCESS32LIB, "VirtualProtectEx", hwnd, adress, size.l, 128, @OrigMode)
EndProcedure
pHandle = OpenProcess_(#PROCESS_ALL_ACCESS, #False, pid)
ReadProcessMemory_(pHandle, $40107D,lives,1,0)
PrintN("lives:" + Hex(Asc(lives))) ;It works i get the firs byte of the process (push....)
VirtualProtectExMY(pHandle, $40107D, 24) ;I try to set read,write,exec access to the process in the other program
CallFunctionFast($40107D) ;and here is where it dies....
any idea pls?
Holdláng
Posted: Sat Apr 23, 2005 5:31 am
by El_Choni
Maybe the other process function needs some parameters in the stack?
Code: Select all
CallFunctionFast($40107D, arg1, arg2...)
Also, make sure that you only need those 24 bytes (or a memory page) of the other process' memory.
BTW, how do you know the other process' function always resides at $40107D?
Posted: Sat Apr 23, 2005 7:41 am
by Holdlang
El_Choni wrote:Maybe the other process function needs some parameters in the stack?
Code: Select all
CallFunctionFast($40107D, arg1, arg2...)
Also, make sure that you only need those 24 bytes (or a memory page) of the other process' memory.
It don't need. I call this process from test.exe, which already running:
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Procedure test()
PrintN("Test ok!")
EndProccedure
The other program which is use the CallFunctionFast is named to fastcall.exe.
BTW, how do you know the other process' function always resides at $40107D?
Yes this is the problem. I searched the addres with tsearch but the problem is i think that it is in an other program(now in 1.exe), and fastcall can only call from the program which call it.
Like some process in the same source: CallFunctionFast(@test)
So i'm now wery upsett. Any idea how to access and run a process from an other program?
I need something like this:
FastCall(procid,_function_,[param1,param2,...])
Holdláng