2 GP Reference Entries
with-graphics-mask
Macro
- Summary
- Binds the mask slot of a graphics port to a rectangular area across the execution of a body of code.
- Signature
with-graphics-mask (port mask mask-x mask-y &key)
&body body => result
- Arguments
-
- port
A graphics port
- mask
A list of the form
(x y width height)ornil- mask-x
An integer
- mask-y
An integer
- body
A body of Lisp code
- Values
-
- result
The return value of the last form executed in body
- Description
- The
with-graphics-maskmacro binds themaskslot of port's graphic state to a rectangular area across the execution of body. By default, mask-x and mask-y are both 0.