> From: "Eddy J. Gurney" <eddy_at_ans.net>
> Date: Wed, 29 Jan 1997 12:59:53 -0500
> References: <199701291618.LAA00641_at_pluto.solarsystem.org>
> Sender: owner-fvwm_at_hpc.uh.edu
>
> If you use M4 preprocessing (and you should! :-) then use this handy macro.
> It works for me on our Sun's, some of which have multiple heads, each
> at different bits-per-pixel:
>
> # XORValue -- this is the value that bits are XOR'd with when rubberbanding.
> # If we have an 8-bit display, use 1, otherwise use 255. The default is '1',
> # but it doesn't work well on deeper displays.
> m4_ifelse(PLANES,`8',`
> XORValue 1',`
> XORValue 255')
>
>
I have found that XOR must be larger than 255 for my 16 plane display.
# Value to be XORed when creating a rubber band. This is set by trial
# and error. Apparently 1 is now the default and 255 was previously.
# 1 is horrible on this machine and 255 is almost as bad.
# 2**16-1 was OK, but intermediate powers of two were better.
XORValue 8191
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Received on Wed Jan 29 1997 - 15:00:01 GMT