The Link property of the feed item is copied to the RssItem objects as they are constructed. The FeedList class, which maintains the list of feeds and the current item in the feed, can be used to find the URL.
The following code creates a new member function of the FeedList class that retrieves the URL from the current item. Some feeds use a relative URL for the item link. Link using the System. Uri constructor to combine the two. If the item link is not a relative URL, the base value is ignored.
Use the ProcessStartInfo class to declare the elements used to start the new process. The following code assumes you have imported the types defined in the Systems.
Diagnostics namespace with the using directive. The following code uses the Enter key, but you can choose a different key. Make sure the new code is added after the call to Close because the form must exit so that you can access the browser window.
Take a moment to test the new feature. Notice that the browser appears as expected if you launch the screensaver from the debugger; however, nothing seems to happen if the screensaver is launched from the operating system. The difference in behavior results from the process that is used to launch the screensaver. When the main screensaver thread exits, the operating system stops any child processes that are still running.
When the screensaver is in the Visual Studio debugger, the Internet Explorer process is not linked to the screensaver as a child process. However, when the screensaver is launched from the Windows Logon Process Winlogon. The solution to this dilemma is a new thread.
To prevent the screensaver application from exiting until the browser window is closed, call WaitForExit on the newly created process to wait for the child process to end before continuing. You must close the screensaver form so that the browser is visible. There are two parts to this procedure. First, create a new class to encapsulate the functionality to run in a new thread, as in the following example:. Next, start the new thread from the OpenItem method created above.
Test the feature again. As long as the browser window remains open, there is at least one active thread running in the application, which prevents it from exiting when the main ScreenSaverForm is closed. For many users, the screensaver is a means of securing the desktop from intruders.
If the workstation is locked, the screensaver must not allow access to the system unless a password is entered. Unfortunately, implementing the preceding code opens a very large security hole. When the user presses the Enter key, the browser appears whether the desktop is locked or not. With the browser open, the file system and desktop are readily accessible. Before a screensaver appears, Windows creates a new virtual desktop for it.
The screensaver process is created on this second desktop, which is never locked. Any other processes that the screensaver creates will inherit this virtual desktop, unless the application switches back to the default desktop. To successfully switch back to the default desktop, certain access rights must be granted.
If the switch fails, the workstation is most likely locked. To complete this step, verify that Desktop. IsNotLocked is true before you create the browser thread. The screensaver application is designed to be easily expanded and customized. Some ideas for extending it are:. Skip to main content.
This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. In this article. Press F5 to build and start the screensaver under the debugger. To continue this discussion, please ask a new question. Laplink Software, Inc. Neil Laplink. Get answers from your peers along with millions of IT pros who visit Spiceworks.
Any help would be greatly appreciated! Popular Topics in Windows 7. Spiceworks Help Desk. Download, install, and then open the tool. Go into the preferences accessible from the system tray icon , and choose the Auto SSaver On option. Which gives you more money to buy geek stuff. And coffee. Use Google Fonts in Word. Use FaceTime on Android Signal vs. Customize the Taskbar in Windows What Is svchost.
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