IVCLComObject

[Properties (by Name)][Methods (by Name)][Events (by Name)]

Com automation Object interface

Declaration

Source position: classesh.inc line 2006

Type
  IVCLComObject = interface ['{E07892A0-F52F-11CF-BD2F-0020AF0E5B81}']
    function GetTypeInfoCount(out Count: Integer) : HRESULT;
    function GetTypeInfo(Index: Integer; LocaleID: Integer; out TypeInfo)
                         : HRESULT;
    function GetIDsOfNames(const IID: TGuid; Names: Pointer; 
                          NameCount: Integer; LocaleID: Integer; 
                          DispIDs: Pointer) : HRESULT;
    function Invoke(DispID: Integer; const IID: TGuid; LocaleID: Integer; 
                   Flags: Word; var Params; VarResult: Pointer; 
                   ExcepInfo: Pointer; ArgErr: Pointer) : HRESULT;
    function SafeCallException(ExceptObject: TObject; 
                              ExceptAddr: CodePointer) : HRESULT;
    procedure FreeOnRelease;
  end
  ;

Description

IVCLComObject is used by TComponent to implement the IUnknown interface used by COM automation servers. Partially, it is the translation to pascal of the IDispatch interface definition by Microsoft. If TComponent needs to return an IUnknown interface, it creates a IVCLComObject interface instead.

Members

Member	Type	Visibility	Description
FreeOnRelease	Method	default	Is called by TComponent.FreeOnRelease
GetIDsOfNames	Method	default	The IDispatch:GetIDsOfNames call for automation servers.
GetTypeInfo	Method	default	The IDispatch:GetTypeInfo call for automation servers
GetTypeInfoCount	Method	default	The IDispatch:GetTypeInfoCount call for automation servers
Invoke	Method	default	The IDispatch:Invoke call for automation servers.
SafeCallException	Method	default	This method can be invoked if an exception occurs during Invoke

Inheritance

Class	Description
IVCLComObject	Com automation Object interface

See also

Name	Description
TComponent.VCLComObject	Not implemented.

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