Compartir a través de

_com_ptr_t::GetActiveObject

  • Artículo

Microsoft Specific

HRESULT GetActiveObject( const CLSID& rclsid ) throw( );

HRESULT GetActiveObject( LPOLESTR clsidString ) throw( );

HRESULT GetActiveObject( LPCSTR clsidStringA ) throw( );

Parameters

rclsid

the CLSID of an object

clsidString

a Unicode string that holds either a CLSID (starting with “{“) or a ProgID

clsidStringA

a multibyte string that holds either a CLSID (starting with “{“) or a ProgID

Remarks

Attaches to an existing instance of an object given a CLSID or ProgID. These member functions call to retrieve a pointer to a running object that has been registered with OLE and then queries for this smart pointer’s interface type. The resulting pointer is then encapsulated within this _com_ptr_t object. Release is called to decrement the reference count for the previously encapsulated pointer. This routine returns the HRESULT to indicate success or failure.

  • GetActiveObject( rclsid )   Attaches to an existing instance of an object given a CLSID.

  • GetActiveObject( clsidString )   Attaches to an existing instance of an object given a Unicode string which holds either a CLSID (starting with “{“) or a ProgID.

  • GetActiveObject( clsidStringA )   Attaches to an existing instance of an object given a multibyte character string which holds either a CLSID (starting with “{“) or a ProgID. Calls , which assumes that the string is in the ANSI code page rather than an OEM code page.

_com_ptr_t Overview

END Microsoft Specific