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COLORBUTTONBITMAP

COLORBUTTONBITMAP

Name


      ColorButtonBitmap

Purpose



      The purpose of this program is to create a 24-bit bitmap that can be used to
      create a colored widget button.

Author



      FANNING SOFTWARE CONSULTING
      David Fanning, Ph.D.
      1645 Sheely Drive
      Fort Collins, CO 80526 USA
      Phone: 970-221-0438
      E-mail: david@idlcoyote.com
      Coyote's Guide to IDL Programming: http://www.idlcoyote.com

Category



      Widget Programming

Calling Sequence



      bitmap = ColorButtonBitmap(theText)
      button = Widget_Button(tlb, Value=bitmap)

Required Inputs



      theText - The text you wish to have on the button.

Outputs



      bitmap - A 3xMxN byte array, representing a 24-bit image that is used
                as a button value.

Optional Keywords



      BGCOLOR - The name of the background color. For example, 'Yellow', 'Tan', etc.
                The name must be compatible with names appropriate for cgColor.
      FGCOLOR - The name of the foreground color. For example, 'Navy', 'Black', etc.
                The name must be compatible with names appropriate for cgColor.

Dependencies



      Reqires cgColor from the Coyote Library:
                    http://www.idlcoyote.com/programs/cgColor.pro

Example



      tlb = Widget_Base(/Row, /Exclusive)
      button1 = Widget_Button(tlb, Value=ColorButtonBitmap('Button 1')) ; Normal button.
      button2 = Widget_Button(tlb, Value=ColorButtonBitmap('Button 2', FGCOLOR='YELLOW', BGCOLOR='NAVY'))
      button3 = Widget_Button(tlb, Value=ColorButtonBitmap('Button 3', BGCOLOR='YELLOW', FGCOLOR='NAVY'))
      Widget_Control, tlb, /Realize

Modification History



      Written by David Fanning, May 25, 2007 based on code named BitmapForButtonText supplied to the IDL
      newsgroup by Dick Jackson: http://www.idlcoyote.com/tip_examples/bitmapforbuttontext.pro.
      Fixed a problem with foreground and background colors that caused them to work correctly only
          when color decomposition is on--as it should be :-). 6 May 2009.



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