In Delphi in my DLL do I have to allocate the return pchar of a function

Question

I have a DLL in which I have a function that returns a pchar. (as to avoid having to use borlndmm) What I was doing originally was casting a string as a pchar and returning that

Answer 1

When you return a string as PChar from function the string is held in stack, which is why it's sometimes corrupted. I use process heap memory for returning strings, or pointer to global buffer array of chars.

Also you can use built-in assembler and do this:

Function GetNameStr : PChar;
Asm
  Call   @OverText
  DB     'Some text',0
@OverText:
  Pop    EAX
End;