fill pointer in DLL from app

[mohfa]

How to pass the parameter to DLL, the parameter is a pointer to the record .
in my Dll i have :

Delphi-Quellcode:

type
  PList = ^AList;
  AList = record
  nam:String;
  Orders: TList;
  end;

so how could i fill this parameter from my app;

regards

[SirThornberry]

you have to work with sharemem because in your record are objects and dynamic strings.
Then you have to call your function in your dll like any other function.
But I wunder. You use a record and a TList object. So you mix global programming with oop. why don't you use only one of both?

[Muetze1]

With the use of sharemem or fastmm you can pass the string from the app to the dll, but an object instance (simple VCL objects) will not work correctly.

[mohfa]

thank SirThornberry , but is there any other alternative so that i can use Strings in my Dll without using ShareMem unit .

Because when using ShareMem i think my Dll will be used only by My app .

[Muetze1]

use PChar as type for strings and do it like the WinAPI: the caller has to allocate the memory for results and the DLL fills the memory of the app - or returns the needed space, if the allocation is is too small.