Cheat Engine

[mezzo]

I programmed a little DLL which does it's thing when injected (DLL_PROCESS_ATTACH).

I would however also like to patch some code to call a function exported by
my DLL. My question is, how do I figure out what opcodes to write so it executes my function ? Is there a win32 call or some pascal/delphi magic that will tell me what memory address (I presume) my DLL function(s) are located at?

Any and all help is welcome.

(even if it is rtfm accompanied by an msdn link)


EDIT:
I guess I have to use the GetProcAddress function to get the address in hex and then add a 'call' asm operand in front ?

[NoMercy]

Check out on msdn the GetProcAddress().

This is just one of the many variants.

Check this out for more methods:

http://msdn.microsoft.com/en-us/library/wf2w9f6x%28v=vs.80%29.aspx

[mezzo]

For some weird reason I kept getting bogus return values from GetProcAddress under freepascal. But I figured it out through some code I found online.

This is what I made of it: