/usr/share/ada/adainclude/gtkada/gdk-screen.ads is in libgtkada2.24.4-dev 2.24.4dfsg-1.
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-- GtkAda - Ada95 binding for Gtk+/Gnome --
-- --
-- Copyright (C) 2006-2013, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public --
-- License as published by the Free Software Foundation; either --
-- version 2 of the License, or (at your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public --
-- License along with this library; if not, write to the --
-- Free Software Foundation, Inc., 59 Temple Place - Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- --
-----------------------------------------------------------------------
-- <description>
-- Gdk_Screen objects are the GDK representation of a physical screen. It is
-- used throughout GDK and GTK+ to specify which screen the top level windows
-- are to be displayed on. It is also used to query the screen specification
-- and default settings such as the default colormap (Get_Default_Colormap),
-- the screen width (Get_Width), etc.
--
-- Note that a screen may consist of multiple monitors which are merged to
-- form a large screen area.
-- </description>
-- <c_version>2.8.17</c_version>
-- <c_version>2.12</c_version> for some of the functions
-- <group>Gdk, the low-level API</group>
-- <see>Gdk_Display</see>
with Gdk.Display;
with Gdk.Rectangle;
with Gdk.Types;
with Glib.Object;
with Glib.Values;
package Gdk.Screen is
type Gdk_Screen_Record is new Glib.Object.GObject_Record with null record;
type Gdk_Screen is access all Gdk_Screen_Record'Class;
function Get_Type return Glib.GType;
-- Return the internal type used for screens
-------------
-- Display --
-------------
-- These subprograms should really be in gdk-display.ads to match what is
-- done for gtk+ itself, but that would create dependency circularities.
-- Ada 2005 has support for these, but we want GtkAda to build with Ada95
-- compilers.
function Get_Screen
(Display : access Gdk.Display.Gdk_Display_Record'Class;
Screen_Num : Glib.Gint)
return Gdk_Screen;
-- Returns a screen object for one of the screens of the display.
function Get_Default_Screen
(Display : access Gdk.Display.Gdk_Display_Record'Class) return Gdk_Screen;
-- Get the default Gdk_Screen for display.
procedure Get_Pointer
(Display : access Gdk.Display.Gdk_Display_Record'Class;
Screen : out Gdk_Screen;
X : out Glib.Gint;
Y : out Glib.Gint;
Mask : out Gdk.Types.Gdk_Modifier_Type);
-- Gets the current location of the pointer and the current modifier
-- mask for a given display.
-- (X, Y) are coordinates relative to the root window on the display
procedure Warp_Pointer
(Display : access Gdk.Display.Gdk_Display_Record'Class;
Screen : access Gdk_Screen_Record;
X : Glib.Gint;
Y : Glib.Gint);
-- Warps the pointer of display to the point x,y on the screen screen,
-- unless the pointer is confined to a window by a grab, in which case it
-- will be moved as far as allowed by the grab. Warping the pointer creates
-- events as if the user had moved the mouse instantaneously to the
-- destination.
--
-- Note that the pointer should normally be under the control of the user.
-- This function was added to cover some rare use cases like keyboard
-- navigation support for the color picker in the GtkColorSelectionDialog.
-------------
-- Screens --
-------------
function Get_Default return Gdk_Screen;
-- Gets the default screen for the default display
function Get_Display
(Screen : access Gdk_Screen_Record) return Gdk.Display.Gdk_Display;
-- Gets the display to which the screen belongs.
procedure Set_Default_Colormap
(Screen : access Gdk_Screen_Record;
Colormap : Gdk.Gdk_Colormap);
function Get_Default_Colormap
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Colormap;
-- Gets the default colormap for screen.
function Get_System_Colormap
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Colormap;
-- Gets the system's colormap for screen
function Get_System_Visual
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Visual;
-- Get the system's default visual for screen. This is the visual for the
-- root window of the display. The return value should not be freed.
function Get_Rgb_Colormap
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Colormap;
-- Gets the preferred colormap for rendering image data on screen. Not a
-- very useful function; historically, GDK could only render RGB image data
-- to one colormap and visual, but in the current version it can render to
-- any colormap and visual. So there's no need to call this function.
function Get_Rgb_Visual
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Visual;
-- Gets a "preferred visual" chosen by GdkRGB for rendering image data on
-- screen. In previous versions of GDK, this was the only visual GdkRGB
-- could use for rendering. In current versions, it's simply the visual
-- GdkRGB would have chosen as the optimal one in those previous versions.
-- GdkRGB can now render to drawables with any visual.
function Get_Rgba_Colormap
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Colormap;
-- Gets a colormap to use for creating windows or pixmaps with an alpha
-- channel. The windowing system on which GTK+ is running may not support
-- this capability, in which case NULL will be returned. Even if a non-NULL
-- value is returned, its possible that the window's alpha channel won't be
-- honored when displaying the window on the screen: in particular, for X
-- an appropriate windowing manager and compositing manager must be running
-- to provide appropriate display.
function Get_Rgba_Visual
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Visual;
-- Gets a visual to use for creating windows or pixmaps with an alpha
-- channel. See the docs for Get_Rgba_Colormap for caveats.
function Get_Root_Window
(Screen : access Gdk_Screen_Record) return Gdk.Gdk_Window;
-- Gets the root window of screen.
function Get_Number (Screen : access Gdk_Screen_Record) return Glib.Gint;
-- Gets the index of screen among the screens in the display to which it
-- belongs.
function Get_Width (Screen : access Gdk_Screen_Record) return Glib.Gint;
function Get_Height (Screen : access Gdk_Screen_Record) return Glib.Gint;
-- Gets the size of screen in pixels
function Get_Width_Mm (Screen : access Gdk_Screen_Record) return Glib.Gint;
function Get_Height_Mm (Screen : access Gdk_Screen_Record) return Glib.Gint;
-- Gets the width of screen in millimeters. Note that on some X servers
-- this value will not be correct.
function Make_Display_Name
(Screen : access Gdk_Screen_Record) return String;
-- Determines the name to pass to Gdk.Display.Open to get a GdkDisplay with
-- this screen as the default screen.
function Get_N_Monitors
(Screen : access Gdk_Screen_Record) return Glib.Gint;
-- Returns the number of monitors which screen consists of.
function Is_Composited (Screen : access Gdk_Screen_Record) return Boolean;
-- Returns whether windows with an RGBA visual can reasonably be expected
-- to have their alpha channel drawn correctly on the screen.
--
-- On X11 this function returns whether a compositing manager is
-- compositing Screen.
--
-- Since: 2.10
--------------
-- Monitors --
--------------
procedure Get_Monitor_Geometry
(Screen : access Gdk_Screen_Record;
Monitor_Num : Glib.Gint;
Dest : out Gdk.Rectangle.Gdk_Rectangle);
-- Retrieves the Gdk_Rectangle representing the size and position of the
-- individual monitor within the entire screen area.
-- Note that the size of the entire screen area can be retrieved via
-- Get_Width and Get_Height.
function Get_Monitor_At_Point
(Screen : access Gdk_Screen_Record;
X : Glib.Gint;
Y : Glib.Gint)
return Glib.Gint;
-- Returns the monitor number in which the point (X,Y) is located.
-- These are coordinates within the virtual screen. The closest monitor is
-- returned when (X, Y) is not in any monitor
function Get_Monitor_At_Window
(Screen : access Gdk_Screen_Record;
Window : Gdk.Gdk_Window) return Glib.Gint;
-- Returns the number of the monitor in which the largest area of the
-- bounding rectangle of Window resides.
procedure Get_Setting
(Screen : access Gdk_Screen_Record;
Name : String;
Value : out Glib.Values.GValue;
Found : out Boolean);
-- Retrieves a desktop-wide setting such as double-click time for the
-- Gdk_Screen screen.
-------------
-- Signals --
-------------
-- <signals>
--
-- - "size_changed"
-- procedure Handler (Screen : access Gdk_Screen_Record'Class);
-- Emitted when the pixel width or height of a screen changes.
-- </signals>
Signal_Size_Changed : constant Glib.Signal_Name := "size_changed";
private
pragma Import (C, Get_Type, "gdk_screen_get_type");
end Gdk.Screen;
-- Reserved for internal use by gtk+:
-- No binding: gdk_screen_set_font_options_libgtk_only
-- No binding: gdk_screen_set_resolution_libgtk_only
-- No binding: gdk_screen_get_resolution_libgtk_only
-- No binding: gdk_screen_get_font_options_libgtk_only
-- Low-level:
-- No binding: gdk_screen_broadcast_client_message
-- Binding would be nice, requires a list of C_Proxy:
-- No binding: gdk_screen_get_toplevel_windows
-- No binding: gdk_screen_list_visuals
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