OnDemand Tutor Application Causes Local Desktop to Disappear

RoyATokeshi
February 25, 2004 5:17 pm

Citrix states in their article: CTX089278

CTX089278 - OnDemand Tutor Application Causes Local Desktop to Disappear

This document was published at: http://support.citrix.com/kb/entry.jspa?externalID=CTX089278

Document ID: CTX089278, Created on: Oct 7, 2002, Updated: Apr 23, 2003

Products: Citrix MetaFrame XP 1.0 for Microsoft Windows 2000, Citrix MetaFrame XP 1.0 for Microsoft NT 4.0 Server Terminal Server Edition, Citrix MetaFrame 1.8 for Microsoft NT 4.0 Server Terminal Server Edition, Citrix MetaFrame 1.8 for Microsoft Windows 2000

A seamless OnDemand tutor published application causes the local desktop to disappear.

Problem Description

When run seamlessly, certain applications such as OnDemand Tutor for MicroSoft Office Products, display a blank box around their Tool Tips and may cause the local client desktop to disappear.

Details

Some applications may create a "transparent" window during their normal processing. The application assumes that it is being run on a Windows desktop where the Explorer.exe desktop is running. Therefore, the application would normally display the desktop through this window. Because Explorer.exe is not run in a seamless session, the default background that is in the session, Black for TSE 4.0 and Blue for Windows 2000, is shown when the application creates its "transparent" window and that window is sent to the Citrix ICA Client.

Resolution

1. View the background in a seamless session.

2. Press Shift+F2 when the seamless application has focus. This draws the session window around the published application.

3. Minimize the application. Notice the default background, which is blank.

4. Identify the "transparent" window created by OnDemand Tutor that covers the entire local desktop

5. Run both the office application and OnDemand Tutor seamlessly.

6. Press CTRL+F1 to get the Microsoft Winlogon Security dialog box for the seamless session.

7. From that dialog box, go to Task Manager and run SPY++.

8. Start the Tutor, by clicking Do-it.

9. Switch to Spy++. Press CTRL+F and drag the finder wheel into the background. The window classname of this window is FrameAroundContinueButton. Looking at its properties, the coordinates of the size of a Windows desktop in this reproduction is 1024x768.

10. This "transparent" window is transparently showing the desktop behind it when the window is created. In this case it is the desktop in the session running at the server.



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