[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'sysutils' (#rtl)

Supports

Check whether a class or given interface supports an interface

Declaration

Source position: line 0

function Supports(

  const Instance: IInterface;

  const IID: TGuid;

  out Intf

):Boolean; overload;

function Supports(

  const Instance: TObject;

  const IID: TGuid;

  out Intf

):Boolean; overload;

function Supports(

  const Instance: TObject;

  const IID: Shortstring;

  out Intf

):Boolean; overload;

function Supports(

  const Instance: IInterface;

  const IID: TGuid

):Boolean; overload;

function Supports(

  const Instance: TObject;

  const IID: TGuid

):Boolean; overload;

function Supports(

  const Instance: TObject;

  const IID: Shortstring

):Boolean; overload;

function Supports(

  const AClass: TClass;

  const IID: TGuid

):Boolean; overload;

function Supports(

  const AClass: TClass;

  const IID: Shortstring

):Boolean; overload;

Description

Supports checks whether Instance supports the interface identified by IID. It returns True if it is supported, False. Optionally, a pointer to the interface is returned to Intf.

Errors

None.

See also

StringToGUID

  

Convert a string to a native TGUID type.

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