FILE: Dial Control Sample

 Last reviewed: October 16, 1997
Article ID: Q175213
The information in this article applies to:
  • Microsoft Visual Basic Professional and Enterprise Editions for Windows, version 5.0

SUMMARY

The Dial control is a circular slider control similar to a volume knob found on a stereo system. This control can be used in a situation where you want the functionality of a regular slider control but lack the space. If the Limit property is set to true, the Dial control operates as a normal slider control. The Value can be increased and decreased between the limits defined by Min and Max properties.

With the Limit property set to False, the Dial can be used to make adjustments to large numbers. For example, use the Dial to adjust the margin of a control. Each revolution of the dial increases or decreases the value by (Min - Max). This could allow for "fine tuning" of the number, while allowing for rapid variations.

The sample project is available from the Visual Basic Owner's site at http://premium.microsoft.com/download/vbasic/dial.exe. Only registered users of Visual Basic can access this site.

MORE INFORMATION

The Dial control has two modes: limited and non-limited. In limited mode, the minimum and maximum values determine the limits possible within one revolution. The dial can be turned only one revolution.

In the non-limited mode, the minimum and maximum values set the range of the dial in one revolution. However, the dial can be turned unlimited revolutions. So, the limited mode could be used to adjust a value between two extremes, such as 1 and 100. The non-limited mode could be used to determine how much adjustment is possible in the margins of a page. Each revolution could equal one inch. 

 (c) Microsoft Corporation 1997, All Rights Reserved. Contributions by
Arsenio Locsin, Microsoft Corporation 
Keywords          : vb5all
Version           : WINDOWS:5.0
Platform          : WINDOWS

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Last reviewed: October 16, 1997
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