Tandy 1000 Basic Reference Manual page 252

Chapter 10 I
BASIC
Ke.ywords
PAINTlGraphics Statement
Fills in an area on the display with a selected color or pattern.
(x,y) specify the coordinates where the painting begins. x is the
horizontal coordinate, and y is the vertical coordinate.
Color
can be either a number.or a string expression. If
color
is a
number it specifies a color number available in the current
screen mode.
If color is a string expression, it specifies the mask to be used for
tiling. The tiling mask describes a pattern to be used when
painting and is in the form:
CHR$(&Hnn)+CHR$(&Hnn)+CHR$(&Hnn)
...
Border specifies the border color at which to stop painting, and
must be a color number in the current palette. If you omit bor-
der,
BASIC assumes the value of
color.
See Chapter 8, "Displaying Color and Graphics," for information
on coordinates and colors for the current screen mode.
Background
is a 1-byte string expression specifying which color
to skip when checking for borders while paint tiling.
BASIC begins to change the color of pixels at the point you spec-
ify with x and
y
coordinates. BASIC continues to change the
color of every pixel that is not the same color as
color.
When
BASIC paints 1 line of pixels without changing the color of any
pixel in that line, PAINT is complete.
However, you may continue past this point while tile painting.
The background option tells PAINT what background tile pattern
or color byte
t o skip when checking for the boundary.
250