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Last Post 24 Jun 2005 10:05 AM by  anon
Background Task in widget application?
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anon



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24 Jun 2005 10:05 AM
    I am building a widget appliation to control an instrument. One thing I would like to do is have a background task that regularly reads an angular position sensor and updates a display regardless of what else may be going in the application. How do I set up a background task like this? Thanks Eric Coppock Ball Aerospace, Boulder, CO

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    24 Jun 2005 10:05 AM
    Hi Eric: If you can run this background task at a regularly spaced interval of time, for instance every second, then you should probably explore using a widget timer. This functionality is accessed via the TIMER keyword for the WIDGET_CONTROL routine. For more information please consult the section entitled "Working with Widget Events" within "Chapter 30: Widget Application Techniques" of the "Building IDL Applications" documentation manual. - Adam
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