display-file man page on Mageia

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display-file(7)			      GGI		       display-file(7)

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.
	      Note: This target generates no input.  The 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

       The  command  is passed through a 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.

libggi-2.2.x			  2003-04-02		       display-file(7)
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