PRB: Some OLE Containers Do Not Call IViewObject::Draw (131155)
The information in this article applies to:
- Microsoft Win32 Software Development Kit (SDK) 3.5, when used with:
- the operating system: Microsoft Windows NT
- Microsoft OLE Libraries for Windows and Win32s 2.01
- Microsoft OLE Libraries, when used with:
- the operating system: Microsoft Windows NT 3.5
This article was previously published under Q131155 SYMPTOMS
A custom OLE rendering handler finds that its IViewObject::Draw method is
never called by some OLE container applications.
CAUSE
Some OLE container applications never call IViewObject::Draw. These
applications do not use the caching and drawing services provided by the
object handler. Instead, they do their own caching and drawing of the
presentations for OLE objects embedded in their documents.
Two examples of such container applications are Microsoft Word version 6.0
and Microsoft Excel version 5.0. They cache metafile representations of
embedded OLE objects, and then do their own drawing of those metafiles.
STATUS
This behavior is by design. It is not possible to get Microsoft Word or
Microsoft Excel to use a handler's drawing services.
| Modification Type: | Major | Last Reviewed: | 3/15/2004 |
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| Keywords: | kbprb KB131155 |
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