Knowledge Base

BUG: OLE SUBCLASS: Subclassing of OleControl/OLE Unspecified

Article ID: 134215

Article Last Modified on 5/7/2003

Microsoft Visual FoxPro 3.0 Standard Edition
Microsoft Visual FoxPro 3.0b Standard Edition
Microsoft Visual FoxPro 5.0 Standard Edition
Microsoft Visual FoxPro 5.0a
Microsoft Visual FoxPro 6.0 Professional Edition

This article was previously published under Q134215

SYMPTOMS

When an OleControl is subclassed, the following error message appears in Visual FoxPro:

OLE error code 0x80004005: Unspecified error.

Visual FoxPro 5.0 generates this error message:

Object class is invalid for this container.

WORKAROUND

Create a new class with the name you want based on the subclass that was just created.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

MORE INFORMATION

Steps to Reproduce Problem

To create a new class, type the following code in the Command window: CREATE CLASS comm1 OF comms AS olecontrol

Select the "Create Control" option and then select the Microsoft Comm Control.
Click OK.
When the Class Designer comes up, save and close the new class.
To try to rename the new class, type the following in the Command window: RENAME CLASS comm1 OF comms TO mycomm

At this point, Visual FoxPro generates the error.

Additional query words: OLE control kbvfp500 kbvfp600

Keywords: kberrmsg kbbug KB134215