Interfaces with GUID

What is translated > Types > Records, Classes, Interfaces > Interfaces > Non-generic interfaces > GUID's > Interfaces with GUID

An example of an Interface with a GUID in Delphi is:

type

  IFoo = interface

    ['{12345678-1234-1234-1234-1234567890AB}']

    procedure DoSomething;

  end;

This definition will be converted differently depending on the target:

C++Builder

__interface INTERFACE_UUID("{12345678-1234-1234-1234-1234567890AB}")

IFoo: public System::IInterface // ancestor added by Delphi2Cpp

{

  virtual void __fastcall DoSomething() = 0;

};

C++

struct D2C_UUID("12345678-1234-1234-1234-1234567890AB")

IFoo: public virtual System::IInterface // ancestor added by Delphi2Cpp : public IInterface

{

  virtual void DoSomething() = 0;

};

  #ifdef IS_PORTABLE

    DEFINE_UUIDOF(IFoo, "12345678-1234-1234-1234-1234567890AB")

  #endif // IS_PORTABLE

D2C_UUID expands to __declspec(uuid(...)) under MSVC and to nothing elsewhere.

DEFINE_UUIDOF provides the portable __d2c_uuidof<IFoo>() specialization and registers the GUID in TGuidRegistry.

This page belongs to the Delphi2Cpp Documentation