Hi,

When i try to call my function (that is located in a DLL) from Starcraft. SC crashes and i get an exception warning. saying that the thread tried to read or write to a virtual address for which it doesn't have the right access too.

the function that i'm calling is only designed to store a register into one of the DLL's global variables. however, it's not even able to call this function from sc without crashing.

now, just for fun i created a test moduel that worked fine, it called the function and everything and i'm using LoadLibraryA in both SC and my test moduel. SO i know the DLL is valid and the functions are correct.

Now, i think the problem is that in the ASM code, it shows that it's just calling address 0x00A0010F. but when a dll is called it usally says, "dllnamehere.00a0010F". So i think it's trying to call that address from within sc and NOT my dll.

how could i fix this?

Thanks



any ideas?
TheTempest

My guess is that you didn't do the memory patch correctly, so it is adding the wrong amount to eip.

Code examples would be nice.

i fixed the problem, it wasn't a bad jmp, i'm using calls. Which aren't related to EIP in my experience.

anyways, what i was doing was getting the functions address using GetProcAddress(). however, the problem was that SC had about 25 DLL's loaded into memory so the address kept chaning.

finaly i just wrote a simple function to output the addresses of the functions i needed from within starcraft via fstream.h

works great now

thx

[quote author=thetempest link=board=23;threadid=3996;start=0#msg33067 date=1070327711]
i fixed the problem, it wasn't a bad jmp, i'm using calls. Which aren't related to EIP in my experience.
[/quote]

Calls like jumps are mostly relative to EIP. Calls to absolute addresses happen when calling through a pointer - like calling functions imported from a DLL.