set-pixel in bitmap-dc%
Sets a pixel in the bitmap.
The current clipping region does not affect the pixel change.
Under X, interleaving drawing commands with
set-pixel calls (for the same
bitmap-dc% object) incurs a substantial performance penalty,
except for interleaved calls to
get-pixel,
get-argb-pixels, and
set-argb-pixels.
( -> void
send a-bitmap-dc set-pixel x y color)
x : real number
y : real number
color : color% object