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Prima::noX11(3)	      User Contributed Perl Documentation      Prima::noX11(3)

NAME
       Prima::noX11 - Use Prima	without	X11

SYNOPSIS
	  use Prima::noX11;
	  use Prima;

	  my $error = Prima::XOpenDisplay();
	  if ( defined $error) {
	       print "not connected to display:	$error\n";
	  } else {
	       print "connected	to display\n";
	  }

DESCRIPTION
       Prima will by default connect to	X11 server on unix. To use Prima
       functionality in	modules	or programs where this default behavior	is
       undesired, please follow	the guidelines below.

   No connection
       In the beginning	of a script or a module	that is	never intended to
       connect to X11 display, add this:

	 use Prima::noX11;
	 use Prima;

       It will be possible to connect to X11 server later on manually.

   Manual connect to X11
       If connection to	X11 is optional, use this code after "use
       Prima::noX11" was invoked:

	  my $error = Prima::XOpenDisplay();
	  if ( defined $error) {
	       print "not connected to display:	$error\n";
	  } else {
	       print "connected	to display\n";
	  }

   Checking if GUI functionality is accesiible.
       Without X11 connection, no GUI functionality such as screen grabbing
       will be accessible. In addition to that functionality, windowing
       functions will only become accessible after Prima::Application creates
       a single	instance $::application.

       Therefore, if $::application is defined,	then all GUI functions can be
       safely used. If,	on the contrary, it is not defined, initiate it	as
       this:

	       unless (	$::application)	{
		       my $error = Prima::XOpenDisplay();
		       die $error if defined $error;
		       require Prima::Application;
		       import Prima::Application;
	       }

AUTHOR
       Dmitry Karasik, <dmitry@karasik.eu.org>.

SEE ALSO
       Prima::X11

perl v5.24.1			  2017-02-28		       Prima::noX11(3)

NAME | SYNOPSIS | DESCRIPTION | AUTHOR | SEE ALSO

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