pmorris@BBN.COM (phil morris) (07/03/90)
Hi, I'm wondering if there is a way to write a background process that can monitor for some key seq (signal?) that would then take over the display and allow the user to rubberband an area of the screen to dump to a file as either a bit-map or a postscript file. Anyone know how to do this or has already done it? thanks, -Phil Morris pmorris@bbn.com
" ratcliffe) (07/03/90)
In article <9007021722.aa01256@VGR.BRL.MIL> pmorris@BBN.COM (phil morris) writes: >Hi, > >I'm wondering if there is a way to write a background process that can >monitor for some key seq (signal?) that would then take over the display >and allow the user to rubberband an area of the screen to dump to a file >as either a bit-map or a postscript file. Anyone know how to do this >or has already done it? you'll have to write yer background process from another piece, but the part about allowing the user to rubberband an area of the screen *is* done in SNAPSHOT(6D). source for this lives in /usr/people/4Dgifts/iristools/imgtools/snapshot.c refer to the section about 4Dgifts in the "Release and Installation Notes" where it lists how to install IF you don't have a /usr/people/4Dgifts user account/subtree loaded on yer system. -- daveus rattus yer friendly neighborhood ratman KOYAANISQATSI ko.yan.nis.qatsi (from the Hopi Language) n. 1. crazy life. 2. life in turmoil. 3. life out of balance. 4. life disintegrating. 5. a state of life that calls for another way of living.
msc@ramoth.esd.sgi.com (Mark Callow) (07/04/90)
In article <9007021722.aa01256@VGR.BRL.MIL>, pmorris@BBN.COM (phil morris) writes: |> Hi, |> |> I'm wondering if there is a way to write a background process that can |> monitor for some key seq (signal?) that would then take over the display |> and allow the user to rubberband an area of the screen to dump to a file |> as either a bit-map or a postscript file. Anyone know how to do this |> or has already done it? Here is a shell archive containing 2 files sp and sp.kill. sp installs a lightweight PostScript process that watches the print screen key. When the print screen key is pressed, sp invokes the scrsave program. You can change "scrsave /usr/tmp/scrsave" to "snapshot" if you want to rubberband out the area to be saved. sp.kill removes the lightweight process. Both files should be made executable. # This is a shell archive. Remove anything before this line, # then unpack it by saving it in a file and typing "sh file". # # Wrapped by on Tue Jul 3 14:41:40 PDT 1990 # Contents: sp sp.kill echo x - sp sed 's/^@//' > "sp" <<'@//E*O*F sp//' #!/usr/NeWS/bin/psh systemdict begin /ScreenPrinter { newprocessgroup createevent begin /Name 16#6F9E def % PrintScreen key scan code /Action [/UpTransition /DownTransition] def /Exclusivity true def currentdict end expressinterest { awaitevent begin Action /UpTransition eq { console rand (Saving screen %\n) fprintf (scrsave /usr/tmp/scrsave) forkunix } if end } loop } fork def end @//E*O*F sp// chmod u=rwx,g=rx,o=rx sp echo x - sp.kill sed 's/^@//' > "sp.kill" <<'@//E*O*F sp.kill//' #!/usr/NeWS/bin/psh systemdict /ScreenPrinter known { ScreenPrinter killprocess systemdict /ScreenPrinter undef } if @//E*O*F sp.kill// chmod u=rwx,g=rx,o=rx sp.kill exit 0 -- From the TARDIS of Mark Callow msc@ramoth.sgi.com, ...{ames,decwrl}!sgi!msc "There is much virtue in a window. It is to a human being as a frame is to a painting, as a proscenium to a play. It strongly defines its content."
msc@ramoth.esd.sgi.com (Mark Callow) (07/07/90)
In article <9938@odin.corp.sgi.com>, msc@ramoth.esd.sgi.com (Mark Callow) writes: |> Action /UpTransition eq { |> console rand (Saving screen %\n) fprintf The preceding line prints a message to SYSLOG and was for debugging. I should have removed it before posting the program. Apologies to those who've been confused. |> (scrsave /usr/tmp/scrsave) forkunix |> } if -- From the TARDIS of Mark Callow msc@ramoth.sgi.com, ...{ames,decwrl}!sgi!msc "There is much virtue in a window. It is to a human being as a frame is to a painting, as a proscenium to a play. It strongly defines its content."