Returns t
if the color specification for a given pixel should result in a pixel that is on in a 1 bit dithered bitmap.
graphics-ports
dither-color-spec rgb-color-spec y x => result
rgb-color-spec⇩ |
An RGB specification. |
y⇩ |
An integer. |
x⇩ |
An integer. |
result |
A boolean. |
The function dither-color-spec
returns t
if rgb-color-spec should result in a pixel that is on at the point (x y) in a 1-bit dithered bitmap. The current set of dithers is used in the decision.
dither-color-spec
is deprecated. Dithers do not affect drawing or the anti-aliasing that occurs when drawing in Cocoa.
CAPI User Guide and Reference Manual (Windows version) - 01 Dec 2021 19:34:15