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    d
     
    
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        depth
      
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        The depth of a window or pixmap is number of bits per pixel it has. 
        The depth of a graphics context is the depth of the drawables it can 
        be used in conjunction with for graphics output.
      
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        descendant
      
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        If W is an inferior of A, then W is a descendant of A.
      
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        device
      
- 
        Keyboards, mice, tablets, track-balls, button boxes, and so forth, 
        are all collectively known as input devices. The core protocol 
        only deals with two devices: the keyboard and the pointer.
      
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        direct color
      
- 
        A class of colormap in which a pixel value is decomposed into three 
        separate subfields for indexing. One subfield indexes an array to 
        produce red intensity values, the second subfield indexes a second 
        array to produce blue intensity values, and the third subfield 
        indexes a third array to produce green intensity values. The RGB 
        values can be changed dynamically.
      
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        dispatching an event
      
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        The process of finding the appropriate contact and its actions.
      
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        double-click
      
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        A sequence of two clicks of the same button in rapid succession.
      
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        drawable
      
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        Both windows and pixmaps can be used as sources and destinations in 
        graphics operations. These are collectively known as drawables
        . However, an :input-only window cannot be used as a source or 
        destination in a graphics operation.
    
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    © 1988, 1989 Texas Instruments 
    Incorporated
    
    Conversion to HTML made by 
    Gilbert Baumann.
    
    Last build: Tue Dec 16 23:30:42 1997