A pixmap is a three-dimensional array of bits. A pixmap is
      normally thought of as a two-dimensional array of pixels, where each
      pixel can be a value from 0 to 2n-1, where n is
      the depth of the pixmap. A pixmap can also be thought of as a stack of
      n bitmaps. A bitmap is a single bit pixmap of depth 1. CLX
      provides functions to: 
    
    
      - 
        Create or free a pixmap 
      
- 
        Test if an object is a pixmap 
      
- 
        Test if two pixmap objects are equal 
      
- 
        Return the pixmap resource ID from a
        pixmap object
    
      Note that pixmaps can only be used on the screen where they were
      created. Pixmaps are off-screen server resources that are used for a
      number of operations. These include defining patterns for cursors or as
      the source for certain raster operations. 
    
      
      
      
      
        
          
          
          
        
          | create-pixmap | &key
            :width :height :depth :drawable | Function | 
      
      
        
          |  | 
              
                :width, :height 
              
                The nonzero width and height (type
                card16). 
              
                :depth 
              
                The depth (type
                card8)
                of the pixmap. 
              
                :drawable 
              
                A
                drawable
                which determines the screen where the pixmap will be used.
             
              Creates a pixmap of the specified :width, :height,
              and :depth. It is valid to pass a window whose class is
              :input-only as the :drawable argument. The
              :width and :height arguments must be nonzero. The
              :depth must be supported by the screen of the specified
              :drawable. 
             
              
                pixmap 
              
                Type
                pixmap. 
             | 
      
     
     
    
      
      
      
      
        
          
          
          
        
          | free-pixmap | pixmap | Function | 
      
      
        
          |  | 
              
                pixmap 
              
                A pixmap.
             
              Allows the X server to free the pixmap storage when no other
              server resources reference it. The pixmap should never be
              referenced again. 
           | 
      
     
     
    
      
      
      
      
        
          
          
          
        
          | pixmap-display | pixmap | Function | 
      
      
        
          |  | 
              
                pixmap 
              
                A pixmap.
             
              Returns the
              display
              object associated with the specified pixmap. 
             
              
                display 
              
                Type
                display. 
             | 
      
     
     
    
      
      
      
      
        
          
          
          
        
          | pixmap-equal | pixmap-1
            pixmap-2 | Function | 
      
      
        
          |  | 
              
                pixmap-1, pixmap-2 
              
                A three-dimensional array of bits to be tested.
             
              Returns true if the two arguments refer to the same server
              resource, and nil if they do not. 
           | 
      
     
     
    
      
      
      
      
        
          
          
          
        
          | pixmap-id | pixmap | Function | 
      
      
        
          |  | 
              
                pixmap 
              
                A pixmap.
             
              Returns the unique resource ID that has been assigned to the
              specified pixmap. 
             
              
                id 
              
                Type
                resource-id. 
             | 
      
     
     
    
      
      
      
      
      
        
          |  | 
              Returns true if the argument is a
              pixmap
              object and nil otherwise.
             
              
                pixmap 
              
                Type
                boolean. 
             | 
      
     
     
    
      
      
      
      
        
          
          
          
        
          | pixmap-plist | pixmap | Function | 
      
      
        
          |  | 
              
                pixmap 
              
                A pixmap.
             
              Returns and (with setf) sets the property list for the
              specified pixmap. This function provides a hook where
              extensions can add data. 
             
              
                plist 
              
                A property list. 
             |