Re: stripey scroll bars

["Townsend,Emru" <etownsend -at- POSITRON -dot- QC -dot- CA>]

No one else has responded to this as yet, so I'll stick my nose in.

What's causing it is pretty simple: scroll bars (rather, the scrolling area)
aren't solid color.  They're actually alternating pixels of light grey and
white.  When the image is scaled (generally, anything less than 1:1
onscreen) or printed, this causes a moire pattern -- the checkerboard.  You
can either fix this by finding the limits of scaling, or by filling the area
with a light grey (or white).

Emru Townsend
Technical Communicator Dude - Product Integration
Positron Public Safety Systems Inc.
Montreal, Quebec, Canada
e-mail: etownsend -at- positron -dot- qc -dot- ca
My words are my own. Confuse them with my employer's at your own risk.

> -----Original Message-----
> From: Alex Dianna [SMTP:AADiann -at- ACCUSORT -dot- COM]
> Sent: Thursday, October 01, 1998 6:58 AM
> To:   TECHWR-L -at- LISTSERV -dot- OKSTATE -dot- EDU
> Subject:      stripey scroll bars
>
> Mark Magennis <markmagennis -at- YAHOO -dot- COM mentioned the "stripey scroll
> bar" effect in ScreenCam.
>
> I have seen this in a few static screen captures and was wondering if
> there is any way around it, short of doing a pixel-for-pixel color
> swap.  Actually, the ones I've seen have more of a checkerboard
> pattern when *printed* (not on screen).
>
> Does this occur in the process of capturing the screen elements
> (using Ctrl + Print Screen)?  Is the app (Paint Shop Pro) I use to
> make the screen cap into an image file causing it?  Is it the format
> in which I save the image (usually .png or .wmf)?   Ack.   Any ideas?
>


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