make-graphics-state &key
transform
foreground
background
operation
thickness
scale-thickness
dashed
dash
line-end-style
line-joint-style mask
font
fill-style
stipple
pattern
mask-x
mask-y
=>
state
The
make-graphics-state
function creates a graphics state object. Each graphics port has a graphics state associated with it, but you may want to create your own individual graphics states for use in specialized drawing operations. Graphics state objects do not consume local resources beyond dynamic memory for the structure (so you can be relaxed about creating them in some number if you really need to). Such objects are used in the
with-graphics-state
macro described below and modified using the following functions:
graphics-state-transform
graphics-state-foreground
graphics-state-background
graphics-state-operation
graphics-state-stipple
graphics-state-pattern
graphics-state-thickness
graphics-state-scale-thickness
graphics-state-dashed
graphics-state-dash
graphics-state-fill-style
graphics-state-line-end-style
graphics-state-line-joint-style
graphics-state-mask
graphics-state-mask-x
graphics-state-mask-y
graphics-state-font
These are the read and write (via
setf
) accessors for the graphics state slots. See the "Graphics state" section in the
LispWorks CAPI User Guide
for valid values for slots of the graphics state.
Note: These slots are used only on Unix: fill-style stipple pattern mask-x mask-y .
Note: operation is not supported for drawing text on Windows.