FAQ: Controls in Visual Basic 4.0

This article covers some of the most Frequently Asked Questions (FAQ) about non-technical issues for Microsoft Visual Basic for Windows. You can find this and other FAQ articles by querying on the keyword "FAQ." You can find additional general references in the Microsoft Knowledge Base by searching on "article list."

The Visual Basic 3.0 FAQ covering controls may contain additional information regarding a portion of these questions. This FAQ is in the process of being completed. More frequently asked questions will be added to this article by the end of January 1996.

This article covers the following questions:

1. How do you get the SeeThru property on the Graph control (GRAPH.VBX) to work properly?
2. Why am I getting an "Invalid Port Number" error message when using my Communications control?

Questions and Answers

1. Q. How do you get the SeeThru property on the Graph control (GRAPH.VBX) to work properly?
   
   A. The SeeThru property does not work properly.
2. Q. Why am I getting an "Invalid Port Number" error message when using my Communications control?
   
   A. The online Help topic for the CommPort property of the Communications control incorrectly states that portNumber can be set to any number between 1 and 99. Setting a value greater than 16 generates an "Invalid Port Number" message.