[delphi] ReadProcessMemory

Hey guys,

I don't know how to use ReadProcessMemory to get a string.
Code:

ReadProcessMemory(PHandle,Pointer($3B98D104),@tem, 4,Read);
...:= string(tem);


This gives me an error
I just want to get a word from the application and transfer it into a label
I've been searching google, but without result so you guys are my last hope:P