Microsoft KB Archive/821223

= PRB: Problems When Hosting Tablet PC Ink Collection and Managed Objects in Internet Explorer =

Article ID: 821223

Article Last Modified on 1/18/2007

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APPLIES TO


 * Microsoft Windows XP Tablet PC Edition
 * Microsoft Windows XP Tablet PC Edition Software Development Kit 1.0
 * Microsoft Windows XP Tablet PC Edition Software Development Kit 1.0
 * Microsoft Windows XP Tablet PC Edition Software Development Kit 1.0

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SYMPTOMS
When you try to use the Microsoft Windows XP Tablet PC operating system ink collection and managed objects in a Windows Form (WinForm) or in an ActiveX control that is hosted in Internet Explorer, you may experience the following symptoms::
 * Security permissions related problems
 * Unexpected inking behavior: ink may not flow from the tip of the pen as expected
 * Closing modeless dialog boxes: you may lose inking capabilities after you close modeless dialog boxes



CAUSE

 * Security Permissions Related Problems

The security model in Internet Explorer does not allow unmanaged code to be executed without first modifying the security permissions under which it can run. Because the Microsoft.ink.dll file includes unmanaged code, it is bound by the restrictions of the default Internet Explorer security permissions.
 * Unexpected Inking Behavior

In some instances (such as modal dialog boxes), the Pen Input Service (WispTis.exe) might not be informed of changes in the position of a window. When this occurs, the ink appears to flow from a position that is not directly under the tip of the pen.
 * Closing Modeless Dialog Boxes

The Pen Input Service (WispTis.exe) object cache and the client application object cache become out of synch. When synchronization does not succeed, inking functionality in the hosted ink controls is also affected.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. Microsoft is currently investigating a resolution.



MORE INFORMATION
For additional information, see the following resources:

821222 INFO: Internet Explorer WinForms Hosting and ActiveX Control Support for Tablet PCs

Microsoft .NET Framework

http://msdn2.microsoft.com/en-us/netframework/default.aspx

Microsoft Tablet PC - Getting Started

http://msdn2.microsoft.com/en-us/library/ms840460.aspx

Additional query words: tabletpc sdk

Keywords: kbprb KB821223

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