FIX: Scribble File Extension Conflicts with Screen Savers (126751)
The information in this article applies to:
- The Microsoft Foundation Classes (MFC), when used with:
- Microsoft Visual C++ for Windows, 16-bit edition 1.5
- Microsoft Visual C++ for Windows, 16-bit edition 1.51
- Microsoft Visual C++ for Windows, 16-bit edition 1.52
- Microsoft Visual C++, 32-bit Editions 2.0
- Microsoft Visual C++, 32-bit Editions 2.1
This article was previously published under Q126751 SYMPTOMS
Creating or activating embedded or linked OLE objects-based files saved
with the MFC server sample "Scribble" fails in unexpected ways. Two common
scenarios are: - When you attempt to insert an object into an OLE container using the
Create from File option, instead of creating a new Scribble Document
object and inplace activating it, the Packager is invoked and a package
is created. Nothing appears to happen when you try to activate the
package.
- While a Scribble Document is open in the Scribble application, you copy
the contents to the clipboard, and attempt to paste link from an OLE
container. The link is created and the container document's image of the
link displays correctly. But after the container document is saved and
both the container and Scribble applications are shut down, when you
reopen the saved document, the container is unable to update or activate
the link to the Scribble Document.
CAUSE
The .SCR file extension used by Scribble is associated with another file
type, typically screen saver applications.
RESOLUTION
Change the file extension used by Scribble Documents to something that is
not already associated with a file type, for example .SCB. After changing
the file extension, you will need to run Scribble once in standalone mode
so it can update the system registry.
The file extension can be changed by editing the string resource
IDR_SCRIBTYPE in the Scribble application. Initially the string
value is:
\nScrib\nScrib\nScrib Files (*.scr)\n.SCR\nScribble.Document.1\n
Scrib Document\nSCRI\nscri Files
To change the file extension to .SCB, edit the string value to
look like this:
\nScrib\nScrib\nScrib Files (*.scb)\n.SCB\nScribble.Document.1\n
Scrib Document\nSCRI\nscri Files
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. This bug was corrected in Microsoft
Visual C++, 32-bit edition, version 4.0.
MORE INFORMATION
MFC Applications can update the file associations maintained in the system
registry by calling CWinApp::RegisterShellFileTypes(). However,
RegisterShellFileTypes() does not replace an existing association. Thus
when an association already exists for the .SCR file extension, nothing is
added to the registry to indicate that Scribble should be used to create or
edit these files.
This situation is most likely to occur on Windows 95, as .SCR files are
associated with Screen Saver applications when Windows 95 is installed.
| Modification Type: | Major | Last Reviewed: | 12/9/2003 |
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| Keywords: | kbBug kbfix kbNoUpdate kbVC400fix KB126751 |
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