writeR(3G)writeR(3G)NAMEwriteR - paints a row of pixels on the screen
FORTRAN 77 SPECIFICATION
subroutine writeR(n, red, green, blue)
integer*4 n
character*(*) red, green, blue
PARAMETERS
n expects the number of pixels that you want to paint.
red expects an array containing red values for the pixels you paint.
You need a red value for each pixel you paint.
green expects an array containing green values for the pixels you
paint. You need a green value for each pixel you paint.
blue expects an array containing blue values for the pixels you paint.
You need a blue value for each pixel you paint.
DESCRIPTIONwriteR paints a row of pixels on the screen in RGB mode. The starting
location is the current character position. The system updates the
current character position to one pixel to the right of the last painted
pixel. Pixels are painted from left to right, and are clipped to the
current screenmask. writeR does not automatically wrap from one line to
the next. The current character position becomes undefined if the new
position is outside the viewport.
writeR supplies a 24-bit RGB value (8 bits for each color) for each
pixel. This value is written directly into the bitplanes.
SEE ALSO
lrectw
NOTESwriteR should not be used in new development. Rather, pixels should be
written using the high-performance lrectw command.
This routine is available only in immediate mode.
When there are only 12 color bitplanes available, the lower 4 bits of
each color are ignored.
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