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X11::Xlib::Screen(3) User Contributed Perl Documentation X11::Xlib::Screen(3) NAME X11::Xlib::Screen - Convenience wrapper around Display+ScreenID DESCRIPTION In ancient history, a "Screen" represented one physical graphics device + monitor. Now days there tends to be only one per system, with multiple monitors or displays aggregated into a single screen using Xinerama or XRandR. This was mostly caused by the annoying restriction that graphic resources (i.e. windows) are bound to a single screen. The short of that story is that "$display->screen_count" and "$screen->width" etc don't do what a person might expect them to do. If you want to know about the boundaries of physical monitors you'll need the yet-unwritten "X11::Xlib::Monitor" objects provided by a future wrapper around Xinerama or XRandR. ATTRIBUTES display Reference to X11::Xlib::Display screen_number The integer identifying this screen. width Width in pixels height Height in pixels width_mm Physical width in millimeters. height_mm Physical height in millimeters. depth Color depth of the RootWindow of this screen. root_window_xid The XID of the root window of this screen root_window The X11::Xlib::Window object for the root window of this screen visual The default visual of this screen METHODS visual_info my $vinfo= $screen->visual_info(); # uses defualt visual for this screen my $vinfo= $screen->visual_info($visual); my $vinfo= $screen->visual_info($visual_id); Shortcut to "visual_info" in X11::Xlib::Display, but using this screen's default visual when no argument is given. match_visual_info my $vinfo= $screen->match_visual_info($depth, $class); Like "match_visual_info" in X11::Xlib::Display but with an implied $screen argument. AUTHOR Olivier Thauvin, <nanardon@nanardon.zarb.org> Michael Conrad, <mike@nrdvana.net> COPYRIGHT AND LICENSE Copyright (C) 2009-2010 by Olivier Thauvin Copyright (C) 2017 by Michael Conrad This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.0 or, at your option, any later version of Perl 5 you may have available. perl v5.32.0 2018-06-06 X11::Xlib::Screen(3)
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