chickadee » canvas-draw » context-capabilities

(context-capabilities [context context?]) -> (listof symbol?)procedure

Returns a list of flags describing the capabilities supported by the given context.

The following flags may show up in the list:

  • 'flush
  • 'clear
  • 'play
  • 'y-axis
  • 'clip-area
  • 'clip-polygon
  • 'region
  • 'rectangle
  • 'chord
  • 'image/rgb
  • 'image/rgba
  • 'image/map
  • 'get-image/rgb
  • 'image/server
  • 'background
  • 'background-opacity
  • 'write-mode
  • 'line-style
  • 'line-width
  • 'fprimtives
  • 'hatch
  • 'stipple
  • 'pattern
  • 'font
  • 'font-dimensions
  • 'text-size
  • 'text-orientation
  • 'palette
  • 'line-cap
  • 'line-join
  • 'path
  • 'bezier