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A Real-Time ActiveX News Control


A while back, Mitchell wrote an article about MoreOver.com and their XML news sources (which are free for developers using them for non-profit purposes). Today, Mitchell takes that idea one step further and creates an ActiveX component that uses the MoreOver.com news feeds in a similar way. The component uses the XMLHTTP library and the MSXML parser to retrieve and process the news. This article also acts as a good introduction to ActiveX controls if you have never created one before.

Author Info:
By: Mitchell Harper
Rating: 5 stars5 stars5 stars5 stars5 stars / 10
December 22, 2001
TABLE OF CONTENTS:
  1. · A Real-Time ActiveX News Control
  2. · Creating the ActiveX control
  3. · Obtaining our news with XMLHTTP
  4. · Displaying the link
  5. · Compiling and using our new ActiveX control
  6. · Conclusion

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A Real-Time ActiveX News Control - Conclusion
(Page 6 of 6 )

Well there you have it, a nifty little ActiveX control that uses the power of XML, the Internet, and Visual Basic. There are heaps of ways that you can improve on this control, and they will all give you some good programming practice. Here are some of them:
  • Create a publicly accessible function called "SetBGColour" that will accept three integer values, R, G, and B. Set the background colour of the control to the windows version of these RGB values, and return the old colour as an integer. The functions declaration would look like this: Public SetBGColor(R as integer, G as integer, B as integer) As integer
  • Create a "Next >>" link at the bottom of the control. Add some code to display the next five news headlines. When all of the twenty headlines have been displayed, display a "<< Previous" button link, to navigate back through the articles.
  • Use the news categories at http://w.moreover.com/categories/category_list_xml.html to add a drop down box and a command button to the top of our ActiveX control. Let the user choose a category, and retrieve the headlines for that category.
If you would like more information on the XMLHTTP library or ActiveX controls, please take a look at some of the links below.
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