Here's an implementation that makes icon captures based on Scott
Smedley's suggestion and Tavis Ormandy's fvwm2rc file.
It forks off the stuff that takes a long time and renices it to the
lowest possible priority. The downside is that there's a small chance
it will result in not getting an icon, and or the wrong icon because
there is only one variable to store icon captures. I have yet to cause
the second condition, though the first I can cause on my slow machine if
I try real hard.
I'll try to figure out how to make it thread-safe later on today.
This uses FvwmPerl, along with this command for it:
DestroyFunc eval
AddToFunc eval I SendToModule FvwmPerl eval $*
Enjoy!
DestroyFunc CaptureIcon
AddToFunc CaptureIcon
+ I raise
+ I eval open(TEMP12,"xwd -silent -id $[w.id] |"); \
local $/; \
$e=<TEMP12>; \
close(TEMP12);
DestroyFunc UseCaptured
AddToFunc UseCaptured
+ I eval my $pid; $SIG{'CHLD'}='IGNORE'; if(!($pid=fork)) { \
open(TEMP12, "|convert -scale $[fvwm_icon_size] -frame 1x1 \
-mattecolor black -quality 0 xwd:- \
png:$[HOME]/.fvwm/icon.tmp.$[w.id].png"); \
print TEMP12 $e; close(TEMP12); \
cmd("WindowId $[w.id] WindowStyle IconOverride, \
Icon $[HOME]/.fvwm/icon.tmp.$[w.id].png, StaysOnBottom"); \
} else { setpriority 0,$pid,19 }
DestroyFunc FastThumb
AddToFunc FastThumb
+ I CaptureIcon
#Use perl to store the pipe so that it can be used in asynchronous
coding.
+ I Iconify
+ I UseCaptured
--
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