windows.sgml

linux下电话本所依赖的一些图形库

<!-- ##### SECTION Title ##### -->
Windows

<!-- ##### SECTION Short_Description ##### -->
Onscreen display areas in the target window system

<!-- ##### SECTION Long_Description ##### -->
<para>
A #GdkWindow is a rectangular region on the screen. It's a low-level object,
used to implement high-level objects such as #GtkWidget and #GtkWindow on the
GTK+ level. A #GtkWindow is a toplevel window, the thing a user might think of 
as a "window" with a titlebar and so on; a #GtkWindow may contain many #GdkWindow. 
For example, each #GtkButton has a #GdkWindow associated with it.
</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### SECTION Stability_Level ##### -->


<!-- ##### STRUCT GdkWindow ##### -->
<para>
An opaque structure representing an onscreen drawable.
Pointers to structures of type #GdkPixmap, #GdkBitmap,
and #GdkWindow, can often be used interchangeably.
The type #GdkDrawable refers generically to any of
these types.
</para>


<!-- ##### ENUM GdkWindowType ##### -->
<para>
Describes the kind of window.
</para>

@GDK_WINDOW_ROOT: root window; this window has no parent, covers the entire screen, and is created by the window system
@GDK_WINDOW_TOPLEVEL: toplevel window (used to implement #GtkWindow)
@GDK_WINDOW_CHILD: child window (used to implement e.g. #GtkButton)
@GDK_WINDOW_DIALOG: useless/deprecated compatibility type
@GDK_WINDOW_TEMP: override redirect temporary window (used to implement #GtkMenu)
@GDK_WINDOW_FOREIGN: foreign window (see gdk_window_foreign_new())

<!-- ##### ENUM GdkWindowClass ##### -->
<para>
@GDK_INPUT_OUTPUT windows are the standard kind of window you might expect. 
@GDK_INPUT_ONLY windows are invisible; they are used to trap events, but 
you can't draw on them.
</para>

@GDK_INPUT_OUTPUT: window for graphics and events
@GDK_INPUT_ONLY: window for events only

<!-- ##### ENUM GdkWindowHints ##### -->
<para>
Used to indicate which fields of a #GdkGeometry struct should be paid attention
to. Also, the presence/absence of @GDK_HINT_POS, @GDK_HINT_USER_POS, and
@GDK_HINT_USER_SIZE is significant, though they don't directly refer to
#GdkGeometry fields.  @GDK_HINT_USER_POS will be set automatically by #GtkWindow
if you call gtk_window_move(). @GDK_HINT_USER_POS and @GDK_HINT_USER_SIZE 
should be set if the user specified a size/position using a --geometry 
command-line argument; gtk_window_parse_geometry() automatically sets these
flags.
</para>

@GDK_HINT_POS: indicates that the program has positioned the window
@GDK_HINT_MIN_SIZE: min size fields are set
@GDK_HINT_MAX_SIZE: max size fields are set
@GDK_HINT_BASE_SIZE: base size fields are set
@GDK_HINT_ASPECT: aspect ratio fields are set
@GDK_HINT_RESIZE_INC: resize increment fields are set
@GDK_HINT_WIN_GRAVITY: window gravity field is set
@GDK_HINT_USER_POS: indicates that the window's position was explicitly set by the user
@GDK_HINT_USER_SIZE: indicates that the window's size was explicitly set by the user

<!-- ##### STRUCT GdkGeometry ##### -->
<para>
The #GdkGeometry struct gives the window manager information about 
a window's geometry constraints. Normally you would set these on 
the GTK+ level using gtk_window_set_geometry_hints(). #GtkWindow 
then sets the hints on the #GdkWindow it creates.
</para>

<para>
gdk_window_set_geometry_hints() expects the hints to be fully valid already and
simply passes them to the window manager; in contrast,
gtk_window_set_geometry_hints() performs some interpretation. For example,
#GtkWindow will apply the hints to the geometry widget instead of the toplevel
window, if you set a geometry widget. Also, the
@min_width/@min_height/@max_width/@max_height fields may be set to -1, and
#GtkWindow will substitute the size request of the window or geometry widget. If
the minimum size hint is not provided, #GtkWindow will use its requisition as
the minimum size.  If the minimum size is provided and a geometry widget is set,
#GtkWindow will take the minimum size as the minimum size of the geometry widget
rather than the entire window. The base size is treated similarly.
</para>

<para>
The canonical use-case for gtk_window_set_geometry_hints() is to get a terminal
widget to resize properly. Here, the terminal text area should be the geometry
widget; #GtkWindow will then automatically set the base size to the size of
other widgets in the terminal window, such as the menubar and scrollbar.  Then,
the @width_inc and @height_inc fields should be set to the size of one character
in the terminal. Finally, the base size should be set to the size of one
character. The net effect is that the minimum size of the terminal 
will have a 1x1 character terminal area, and only terminal sizes on 
the "character grid" will be allowed.
</para>

<para>
Here's an example of how the terminal example would be implemented, assuming 
a terminal area widget called "terminal" and a toplevel window "toplevel":
<informalexample><programlisting>
	GdkGeometry hints;

	hints.base_width = terminal->char_width;
        hints.base_height = terminal->char_height;
        hints.min_width = terminal->char_width;
        hints.min_height = terminal->char_height;
        hints.width_inc = terminal->char_width;
        hints.height_inc = terminal->char_height;

	gtk_window_set_geometry_hints (GTK_WINDOW (toplevel),
				       GTK_WIDGET (terminal),
 				       &amp;hints,
				       GDK_HINT_RESIZE_INC |
                                       GDK_HINT_MIN_SIZE |
                                       GDK_HINT_BASE_SIZE);
</programlisting></informalexample>
</para>

<para>
The other useful fields are the @min_aspect and @max_aspect fields; these
contain a width/height ratio as a floating point number. If a geometry widget is
set, the aspect applies to the geometry widget rather than the entire window.
The most common use of these hints is probably to set @min_aspect and
@max_aspect to the same value, thus forcing the window to keep a constant aspect
ratio.
</para>

@min_width: minimum width of window (or -1 to use requisition, with #GtkWindow only)
@min_height minimum height of window (or -1 to use requisition, with #GtkWindow only)
@min_height: 
@max_width: maximum width of window (or -1 to use requisition, with #GtkWindow only)
@max_height: maximum height of window (or -1 to use requisition, with #GtkWindow only)
@base_width: allowed window widths are @base_width + @width_inc * N where N is any integer (-1 allowed with #GtkWindow)
@base_height: allowed window widths are @base_height + @height_inc * N where N is any integer (-1 allowed with #GtkWindow)
@width_inc: width resize increment
@height_inc: height resize increment
@min_aspect: minimum width/height ratio
@max_aspect: maximum width/height ratio
@win_gravity: window gravity, see gtk_window_set_gravity()

<!-- ##### ENUM GdkGravity ##### -->
<para>
Defines the reference point of a window and the meaning of coordinates
passed to gtk_window_move(). See gtk_window_move() and the "implementation 
notes" section of the 
<ulink url="http://www.freedesktop.org/standards/wm-spec">extended 
window manager hints</ulink> specification for more details.
</para>

@GDK_GRAVITY_NORTH_WEST: the reference point is at the top left corner.
@GDK_GRAVITY_NORTH: the reference point is in the middle of the top edge.
@GDK_GRAVITY_NORTH_EAST: the reference point is at the top right corner.
@GDK_GRAVITY_WEST: the reference point is at the middle of the left edge.
@GDK_GRAVITY_CENTER: the reference point is at the center of the window.
@GDK_GRAVITY_EAST: the reference point is at the middle of the right edge.
@GDK_GRAVITY_SOUTH_WEST: the reference point is at the lower left corner.
@GDK_GRAVITY_SOUTH: the reference point is at the middle of the lower edge.
@GDK_GRAVITY_SOUTH_EAST: the reference point is at the lower right corner.
@GDK_GRAVITY_STATIC: the reference point is at the top left corner of the 
   window itself, ignoring window manager decorations.

<!-- ##### ENUM GdkWindowEdge ##### -->
<para>
Determines a window edge or corner. 
</para>

@GDK_WINDOW_EDGE_NORTH_WEST: the top left corner.
@GDK_WINDOW_EDGE_NORTH: the top edge.
@GDK_WINDOW_EDGE_NORTH_EAST: the top right corner.
@GDK_WINDOW_EDGE_WEST: the left edge.
@GDK_WINDOW_EDGE_EAST: the right edge.
@GDK_WINDOW_EDGE_SOUTH_WEST: the lower left corner.
@GDK_WINDOW_EDGE_SOUTH: the lower edge.
@GDK_WINDOW_EDGE_SOUTH_EAST: the lower right corner.

<!-- ##### ENUM GdkWindowTypeHint ##### -->
<para>
These are hints for the window manager that indicate what type of function 
the window has. The window manager can use this when determining decoration 
and behaviour of the window. The hint must be set before mapping the window.
</para>
<para>
See the
<ulink url="http://www.freedesktop.org/standards/wm-spec">extended 
window manager hints</ulink> specification for more details about 
window types.
</para>

@GDK_WINDOW_TYPE_HINT_NORMAL: Normal toplevel window.
@GDK_WINDOW_TYPE_HINT_DIALOG: Dialog window.
@GDK_WINDOW_TYPE_HINT_MENU: Window used to implement a menu.
@GDK_WINDOW_TYPE_HINT_TOOLBAR: Window used to implement toolbars.
@GDK_WINDOW_TYPE_HINT_SPLASHSCREEN: Window used to display a splash 
  screen during application startup.
@GDK_WINDOW_TYPE_HINT_UTILITY: Utility windows which are not detached 
  toolbars or dialogs.
@GDK_WINDOW_TYPE_HINT_DOCK: Used for creating dock or panel windows.
@GDK_WINDOW_TYPE_HINT_DESKTOP: Used for creating the desktop background 
window.

<!-- ##### STRUCT GdkWindowAttr ##### -->
<para>
Attributes to use for a newly-created window.
</para>

@title: title of the window (for toplevel windows)
@event_mask: event mask (see gdk_window_set_events())
@x: X coordinate relative to parent window (see gdk_window_move())
@y: Y coordinate relative to parent window (see gdk_window_move())
@width: width of window
@height: height of window
@wclass: #GDK_INPUT_OUTPUT (normal window) or #GDK_INPUT_ONLY (invisible window that receives events)
@visual: #GdkVisual for window
@colormap: #GdkColormap for window
@window_type: type of window
@cursor: cursor for the window (see gdk_window_set_cursor())
@wmclass_name: don't use (see gtk_window_set_wmclass())
@wmclass_class: don't use (see gtk_window_set_wmclass())
@override_redirect: %TRUE to bypass the window manager

<!-- ##### ENUM GdkWindowAttributesType ##### -->
<para>
Used to indicate which fields in the #GdkWindowAttr struct should be
honored. For example, if you filled in the "cursor" and "x" fields of
#GdkWindowAttr, pass "@GDK_WA_X | @GDK_WA_CURSOR" to gdk_window_new().  Fields
in #GdkWindowAttr not covered by a bit in this enum are required; for example,
the @width/@height, @wclass, and @window_type fields are required, they have no
corresponding flag in #GdkWindowAttributesType.
</para>

@GDK_WA_TITLE: Honor the title field
@GDK_WA_X: Honor the X coordinate field
@GDK_WA_Y: Honor the Y coordinate field
@GDK_WA_CURSOR: Honor the cursor field
@GDK_WA_COLORMAP: Honor the colormap field
@GDK_WA_VISUAL: Honor the visual field
@GDK_WA_WMCLASS: Honor the wmclass_class and wmclass_name fields
@GDK_WA_NOREDIR: Honor the override_redirect field

<!-- ##### FUNCTION gdk_window_new ##### -->
<para>

</para>

@parent: 
@attributes: 
@attributes_mask: 
@Returns: 


<!-- ##### FUNCTION gdk_window_destroy ##### -->
<para>

</para>

@window: 


<!-- ##### MACRO gdk_window_ref ##### -->
<para>
Deprecated equivalent of g_object_ref()
</para>

@Returns: 


<!-- ##### MACRO gdk_window_unref ##### -->
<para>
Deprecated equivalent of g_object_unref()
</para>



<!-- ##### FUNCTION gdk_window_get_window_type ##### -->
<para>

</para>

@window: 
@Returns: 


<!-- ##### FUNCTION gdk_window_at_pointer ##### -->
<para>

</para>

@win_x: 
@win_y: 
@Returns: 


<!-- ##### FUNCTION gdk_window_show ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_show_unraised ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_hide ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_is_visible ##### -->
<para>

</para>

@window: 
@Returns: 


<!-- ##### FUNCTION gdk_window_is_viewable ##### -->
<para>

</para>

@window: 
@Returns: 


<!-- ##### FUNCTION gdk_window_get_state ##### -->
<para>

</para>

@window: 
@Returns: 


<!-- ##### FUNCTION gdk_window_withdraw ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_iconify ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_deiconify ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_stick ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_unstick ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_maximize ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_unmaximize ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_fullscreen ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_unfullscreen ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_set_keep_above ##### -->
<para>

</para>

@window: 
@setting: 


<!-- ##### FUNCTION gdk_window_set_keep_below ##### -->
<para>

</para>

@window: 
@setting: 


<!-- ##### FUNCTION gdk_window_move ##### -->
<para>

</para>

@window: 
@x: 
@y: 


<!-- ##### FUNCTION gdk_window_resize ##### -->
<para>

</para>

@window: 
@width: 
@height: 


<!-- ##### FUNCTION gdk_window_move_resize ##### -->
<para>

</para>

@window: 
@x: 
@y: 
@width: 
@height: 


<!-- ##### FUNCTION gdk_window_scroll ##### -->
<para>

</para>

@window: 
@dx: 
@dy: 


<!-- ##### FUNCTION gdk_window_reparent ##### -->
<para>

</para>

@window: 
@new_parent: 
@x: 
@y: 


<!-- ##### FUNCTION gdk_window_clear ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_clear_area ##### -->
<para>

</para>

@window: 
@x: 
@y: 
@width: 
@height: 


<!-- ##### FUNCTION gdk_window_clear_area_e ##### -->
<para>

</para>

@window: 
@x: 
@y: 
@width: 
@height: 


<!-- ##### MACRO gdk_window_copy_area ##### -->
<para>
Deprecated equivalent to gdk_draw_drawable(), see that function for docs
</para>

@drawable: 
@gc: 
@x: 
@y: 
@source_drawable: 
@source_x: 
@source_y: 
@width: 
@height: 


<!-- ##### FUNCTION gdk_window_raise ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_lower ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_focus ##### -->
<para>

</para>

@window: 
@timestamp: 


<!-- ##### FUNCTION gdk_window_register_dnd ##### -->
<para>
Registers a window as a potential drop destination.
</para>

@window: a #GdkWindow.


<!-- ##### FUNCTION gdk_window_begin_resize_drag ##### -->
<para>

</para>

@window: 
@edge: 
@button: 
@root_x: 
@root_y: 
@timestamp: 


<!-- ##### FUNCTION gdk_window_begin_move_drag ##### -->
<para>

</para>

@window: 
@button: 
@root_x: 
@root_y: 
@timestamp: 


<!-- ##### FUNCTION gdk_window_constrain_size ##### -->
<para>

</para>

@geometry: 
@flags: 
@width: 
@height: 
@new_width: 
@new_height: 


<!-- ##### FUNCTION gdk_window_begin_paint_rect ##### -->
<para>

</para>

@window: 
@rectangle: 


<!-- ##### FUNCTION gdk_window_begin_paint_region ##### -->
<para>

</para>

@window: 
@region: 


<!-- ##### FUNCTION gdk_window_end_paint ##### -->
<para>

</para>

@window: 


<!-- ##### FUNCTION gdk_window_invalidate_rect ##### -->
<para>

</para>

@window: 
@rect: 
@invalidate_children: 


<!-- ##### FUNCTION gdk_window_invalidate_region ##### -->
<para>

</para>

@window: 
@region: 
@invalidate_children: 


<!-- ##### FUNCTION gdk_window_invalidate_maybe_recurse ##### -->
<para>

</para>

@window: 
@region: 
@child_func: 
@user_data: 


<!-- ##### FUNCTION gdk_window_get_update_area ##### -->
<para>

</para>

@window: 
@Returns: 


<!-- ##### FUNCTION gdk_window_freeze_updates ##### -->
<para>

</para>

@window: