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prima::nox11

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
";
	  } else {
	       print "connected to display
";
	  }

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
";
	  } else {
	       print "connected to display
";
	  }

   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 v5.14.2							    2009-02-24							   Prima::noX11(3)

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