Ubuntu Feisty 7.04 manual page repository
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Provided by: libggi2_2.2.1-5ubuntu1_i386
NAME
display-file : Render display into image file
SYNOPSIS
display-file: [-flushcmd=<command>] [-flushframe=<n>] [-flushtime=<t>] <filename>
DESCRIPTION
Renders an image into a file. The file can be a framebuffer device (e.g. /dev/fb0), in which case a reasonable representation of the image will be drawn on the console so long as the program’s mode matches the framebuffer’s mode. display-multi(7) tar‐ get can be used in order to see (and control) what the program does (using a normal target) and then generate a snapshot when the program exits.
OPTIONS
filename is the file to render the images to. If the filename is a PPM file (has the extension .ppm), then the image will be generated at ggi Close(3) time. Otherwise the file is a custom GGIFILE format and is generated continuously. The display-file target can be used to generate movies from running LibGGI applications. To do this, set -flushcmd to a shell command to execute at the times given by one of the two other parameters. This looks typically like: ppmtogif foo.ppm > foo.%04d.gif printf(3) which has the current count of saved frames as an argument (or rather as 10 arguments to allow a few more complex commands). This shell command is either executed at every n-th invocation of ggi‐ Flush or every t seconds, where t can have fractional components (spec‐ ified as decimal). Note, that the invocation of the shell command will slow down the pro‐ gram, so make sure you use a reasonable value, if you use the -flush‐ time argument. The primary file is updated before every invocation of the shell com‐ mand.
FEATURES
· DirectBuffer always available. · Unaccelerated.