Photoshop Technique Question

you could set up a patern for it,
create diagonal in like a 10x10 doc then
edit > define patern

there might be an easier way to do it but thats how i did it in the past
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http://www.catb.org/~esr/faqs/smart-questions.html
And for this, I go to hell.

That is probably one of the easiest method, just need to append this:

After making the pattern, create a new layer, then
edit++
Fill pattern

and tada you have many diagonal lines.

senex

yeah, make a few horizontal bars, rotate it 45 degrees, then use Define Pattern.

Oh and if you need a quick and small one, the later versions of Photoshop comes with a diagonal lines shape built in. (It's under the shapes tool.. press U)

Diagonal lines are to 2004 as when grids and 45 degree arrows were to 2000. :b

depending on the amount of space you want between your lines, you should choose form like 5 px pattern to larger ones.. rotating horizontal or vertical lines by 45 degrees might make them antialiased, and thats not really what we are looking for..
you might also wanna check http://designspice.com/main/free/free_downloads.php
enfusion - you mean 2004&2005? :P