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4/8/2010

This function determines if a given CLSID represents an OLE 1 object.

Syntax 

BOOL CoIsOle1Class(
  REFCLSID 
rclsid
);

Parameters

rclsid

[in] CLSID to check.

Return Value

TRUE

CLSID refers to an OLE 1 object.

FALSE

CLSID does not refer to an OLE 1 object.

Remarks

CoIsOle1Classdetermines whether an object class is from OLE 1. Your application can use it to prevent linking to embedded OLE 1 objects within a container, which OLE 1 objects do not support.

When a container has determined that copied data represents an embedded object, the container code can call CoIsOle1Classto determine whether the embedded object is an OLE 1 object.

If CoIsOle1Classreturns TRUE, the container does not offer CF_LINKSOURCE as one of its clipboard formats. This is one of several OLE compatibility functions.

Other compatibility functions, listed below, can be used to convert the storage formats of objects between OLE 1 and OLE.

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

Requirements

Header objbase.h
Library ole32.lib
Windows Embedded CE Windows CE 3.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

COM Functions