writing and reading a line of picture points

[shaversm]

I have a program that reads a bmp picture file
manipulates it and writes it back out to the screen
I am using point and pset, which is very slow

I wrote a faster version that uses picture.line to write
(if the color is the same for consecutive points)
otherwise it uses pset

There must be a way to do a SINGLE operation to
read and write multiple picture points into an long array
i.e. a full line of points

I would think this would speed things up concerably

anybody have something that does this
Bitblt may do this with all the "proper setup"