dc<%>

A dc<%> object is a device context for drawing graphics and text. It represents output devices in a generic way; e.g., a canvas has a device context, as does a printer.

The drawing methods, such as draw-rectangle, accept real number values as arguments, but the results are only well-defined when the drawing coordinates are in the range -16383 to 16383. This restriction applies to the coordinates both before and after offsets and scaling factors are applied.

Methods

• clear
• draw-arc
• draw-bitmap
• draw-bitmap-section
• draw-ellipse
• draw-line
• draw-lines
• draw-point
• draw-polygon
• draw-rectangle
• draw-rounded-rectangle
• draw-spline
• draw-text
• end-doc
• end-page
• get-background
• get-brush
• get-char-height
• get-char-width
• get-clipping-region
• get-font
• get-pen
• get-size
• get-text-background
• get-text-extent
• get-text-foreground
• get-text-mode
• ok?
• set-background
• set-brush
• set-clipping-rect
• set-clipping-region
• set-font
• set-origin
• set-pen
• set-scale
• set-text-background
• set-text-foreground
• set-text-mode
• start-doc
• start-page
• try-color