[dec]

Hola,

Tomado de aquí: http://www.angelfire.com/hi5/delphizeus/lifts.html

VOID, PVOID, LPVOID, What is a Void?

You will see the VOID in a parameter or Return (Result) of an API function. There is no Pascal substitute for VOID, it roughly means "Nothing is here". The API says this about it - The base type VOID indicates a procedure with no arguments or a function that does not return a result value (a procedure in Pascal).

The pointer types of PVOID, LPVOID and LPCVOID are for the C-Code Non-Typed pointers, which is the Delphi Pascal Pointer type (non-typed pointer).

Let's look at the API definition for the ZeroMemory( ) function -

VOID ZeroMemory(
   PVOID Destination,
   DWORD Length  
   );

and the windows.pas Pascal definition -

Código Delphi [-]
procedure ZeroMemory(
   Destination: Pointer;
   Length: Cardinal
   );

In Pascal this function becomes a Procedure, because the Return in C-Code is VOID. And the "Destination" is a Pascal "Pointer" type.

Según lo entiendo puedes usar "Pointer" o definir "PVOID" como tal.