Compartilhar via

OleLoadFromStream (Compact 2013)

  • Artigo

3/26/2014

This function loads an object from the stream.

Syntax

WINOLEAPI OleLoadFromStream(
  IStream* pStm,
  REFIID iidInterface,
  void** ppvObj
);

Parameters

  • pStm
    [in] Pointer to the IStream interface on the stream from which the object is to be loaded.
  • iidInterface
    [in] Interface identifier (IID) the caller wants to use to communicate with the object when it is loaded.
  • ppvObj
    [out] Address of pointer variable that receives the interface pointer requested in riid. Upon successful return, ppvObj contains the requested interface pointer on the newly loaded object.

Return Value

The following HRESULT values can be returned.

Value

Description

S_OK

The object was loaded.

E_NOINTERFACE

The specified interface is not supported.

E_OUTOFMEMORY

The function failed.

This function can also return any error value returned by the ReadClassStm and CoCreateInstance functions, and the IPersistStorage::Load method.

Remarks

This function can be used to load an object that supports the IPersistStream interface.

The CLSID of the object must immediately precede the object's data in the stream, which is accomplished by the companion function OleSaveToStream or the operations it wraps, which are described under that topic.

If the CLSID for the stream is CLSID_NULL, the ppvObj parameter is set to NULL.

To determine whether the platform supports this function, see Determining Supported COM APIs.

Requirements

Header

ole2.h

Library

ole32.lib

See Also

Tasks

Determine Supported COM APIs

Reference

OLE Functions
Automation Functions
IStream
ReadClassStm
CoCreateInstance
IPersistStorage::Load
IPersistStreamInit
OleSaveToStream