forked from AuroraMiddleware/gtk
3322a264e0
Wed Oct 7 05:15:36 1998 Tim Janik <timj@gtk.org>
* gtk/gtk*.h:
* gdk/gdk.h: removed all occourances of #pragma } and #pragma {
which were in place to fixup emacs' cc-mode indentation.
putting (c-set-offset 'inextern-lang 0) into ~/.emacs is the
proper way to achive this and doesn't produce problems for
stupid pragma-related compiler bugs. ;)
578 lines
22 KiB
C
578 lines
22 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GTK_WIDGET_H__
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#define __GTK_WIDGET_H__
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#include <gdk/gdk.h>
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#include <gtk/gtkaccelgroup.h>
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#include <gtk/gtkobject.h>
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#include <gtk/gtkstyle.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* The flags that are used by GtkWidget on top of the
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* flags field of GtkObject.
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*/
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typedef enum
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{
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GTK_TOPLEVEL = 1 << 4,
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GTK_NO_WINDOW = 1 << 5,
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GTK_REALIZED = 1 << 6,
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GTK_MAPPED = 1 << 7,
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GTK_VISIBLE = 1 << 8,
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GTK_SENSITIVE = 1 << 9,
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GTK_PARENT_SENSITIVE = 1 << 10,
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GTK_CAN_FOCUS = 1 << 11,
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GTK_HAS_FOCUS = 1 << 12,
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GTK_CAN_DEFAULT = 1 << 13,
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GTK_HAS_DEFAULT = 1 << 14,
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GTK_HAS_GRAB = 1 << 15,
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GTK_RC_STYLE = 1 << 16,
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GTK_COMPOSITE_CHILD = 1 << 17,
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GTK_BASIC = 1 << 18
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} GtkWidgetFlags;
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/* Macro for casting a pointer to a GtkWidget or GtkWidgetClass pointer.
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* Macros for testing whether `widget' or `klass' are of type GTK_TYPE_WIDGET.
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*/
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#define GTK_TYPE_WIDGET (gtk_widget_get_type ())
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#define GTK_WIDGET(widget) (GTK_CHECK_CAST ((widget), GTK_TYPE_WIDGET, GtkWidget))
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#define GTK_WIDGET_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_WIDGET, GtkWidgetClass))
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#define GTK_IS_WIDGET(widget) (GTK_CHECK_TYPE ((widget), GTK_TYPE_WIDGET))
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#define GTK_IS_WIDGET_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_WIDGET))
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/* Macros for extracting various fields from GtkWidget and GtkWidgetClass.
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*/
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#define GTK_WIDGET_TYPE(wid) (GTK_OBJECT_TYPE (wid))
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#define GTK_WIDGET_STATE(wid) (GTK_WIDGET (wid)->state)
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#define GTK_WIDGET_SAVED_STATE(wid) (GTK_WIDGET (wid)->saved_state)
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/* Macros for extracting the widget flags from GtkWidget.
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*/
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#define GTK_WIDGET_FLAGS(wid) (GTK_OBJECT_FLAGS (wid))
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#define GTK_WIDGET_TOPLEVEL(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_TOPLEVEL) != 0)
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#define GTK_WIDGET_NO_WINDOW(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_NO_WINDOW) != 0)
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#define GTK_WIDGET_REALIZED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_REALIZED) != 0)
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#define GTK_WIDGET_MAPPED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_MAPPED) != 0)
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#define GTK_WIDGET_VISIBLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_VISIBLE) != 0)
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#define GTK_WIDGET_DRAWABLE(wid) ((GTK_WIDGET_VISIBLE (wid) && GTK_WIDGET_MAPPED (wid)) != 0)
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#define GTK_WIDGET_SENSITIVE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_SENSITIVE) != 0)
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#define GTK_WIDGET_PARENT_SENSITIVE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_PARENT_SENSITIVE) != 0)
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#define GTK_WIDGET_IS_SENSITIVE(wid) (((GTK_WIDGET_SENSITIVE (wid) && \
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GTK_WIDGET_PARENT_SENSITIVE (wid)) != 0) != 0)
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#define GTK_WIDGET_CAN_FOCUS(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_CAN_FOCUS) != 0)
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#define GTK_WIDGET_HAS_FOCUS(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_FOCUS) != 0)
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#define GTK_WIDGET_CAN_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_CAN_DEFAULT) != 0)
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#define GTK_WIDGET_HAS_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_DEFAULT) != 0)
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#define GTK_WIDGET_HAS_GRAB(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_GRAB) != 0)
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#define GTK_WIDGET_RC_STYLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_RC_STYLE) != 0)
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#define GTK_WIDGET_COMPOSITE_CHILD(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_COMPOSITE_CHILD) != 0)
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#define GTK_WIDGET_BASIC(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_BASIC) != 0)
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/* Macros for setting and clearing widget flags.
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*/
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#define GTK_WIDGET_SET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) |= (flag)); }G_STMT_END
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#define GTK_WIDGET_UNSET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) &= ~(flag)); }G_STMT_END
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typedef struct _GtkRequisition GtkRequisition;
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typedef struct _GtkAllocation GtkAllocation;
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typedef struct _GtkSelectionData GtkSelectionData;
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typedef struct _GtkWidget GtkWidget;
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typedef struct _GtkWidgetClass GtkWidgetClass;
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typedef struct _GtkWidgetAuxInfo GtkWidgetAuxInfo;
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typedef struct _GtkWidgetShapeInfo GtkWidgetShapeInfo;
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typedef void (*GtkCallback) (GtkWidget *widget,
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gpointer data);
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/* A requisition is a desired amount of space which a
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* widget may request.
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*/
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struct _GtkRequisition
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{
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guint16 width;
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guint16 height;
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};
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/* An allocation is a size and position. Where a widget
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* can ask for a desired size, it is actually given
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* this amount of space at the specified position.
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*/
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struct _GtkAllocation
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{
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gint16 x;
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gint16 y;
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guint16 width;
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guint16 height;
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};
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/* The contents of a selection are returned in a GtkSelectionData
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structure. selection/target identify the request.
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type specifies the type of the return; if length < 0, and
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the data should be ignored. This structure has object semantics -
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no fields should be modified directly, they should not be created
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directly, and pointers to them should not be stored beyond the duration of
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a callback. (If the last is changed, we'll need to add reference
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counting) */
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struct _GtkSelectionData
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{
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GdkAtom selection;
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GdkAtom target;
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GdkAtom type;
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gint format;
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guchar *data;
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gint length;
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};
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/* The widget is the base of the tree for displayable objects.
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* (A displayable object is one which takes up some amount
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* of screen real estate). It provides a common base and interface
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* which actual widgets must adhere to.
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*/
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struct _GtkWidget
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{
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/* The object structure needs to be the first
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* element in the widget structure in order for
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* the object mechanism to work correctly. This
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* allows a GtkWidget pointer to be cast to a
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* GtkObject pointer.
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*/
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GtkObject object;
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/* 16 bits of internally used private flags.
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* this will be packed into the same 4 byte alignment frame that
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* state and saved_state go. we therefore don't waste any new
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* space on this.
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*/
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guint16 private_flags;
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/* The state of the widget. There are actually only
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* 5 widget states (defined in "gtkenums.h").
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*/
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guint8 state;
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/* The saved state of the widget. When a widgets state
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* is changed to GTK_STATE_INSENSITIVE via
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* "gtk_widget_set_state" or "gtk_widget_set_sensitive"
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* the old state is kept around in this field. The state
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* will be restored once the widget gets sensitive again.
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*/
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guint8 saved_state;
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/* The widgets name. If the widget does not have a name
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* (the name is NULL), then its name (as returned by
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* "gtk_widget_get_name") is its classes name.
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* Among other things, the widget name is used to determine
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* the style to use for a widget.
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*/
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gchar *name;
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/* The style for the widget. The style contains the
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* colors the widget should be drawn in for each state
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* along with graphics contexts used to draw with and
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* the font to use for text.
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*/
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GtkStyle *style;
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/* The widgets desired size.
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*/
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GtkRequisition requisition;
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/* The widgets allocated size.
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*/
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GtkAllocation allocation;
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/* The widgets window or its parent window if it does
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* not have a window. (Which will be indicated by the
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* GTK_NO_WINDOW flag being set).
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*/
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GdkWindow *window;
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/* The widgets parent.
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*/
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GtkWidget *parent;
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};
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struct _GtkWidgetClass
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{
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/* The object class structure needs to be the first
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* element in the widget class structure in order for
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* the class mechanism to work correctly. This allows a
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* GtkWidgetClass pointer to be cast to a GtkObjectClass
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* pointer.
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*/
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GtkObjectClass parent_class;
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/* The signal to emit when an object of this class is activated.
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* This is used when activating the current focus widget and
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* the default widget.
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*/
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guint activate_signal;
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/* basics */
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void (* show) (GtkWidget *widget);
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void (* show_all) (GtkWidget *widget);
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void (* hide) (GtkWidget *widget);
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void (* hide_all) (GtkWidget *widget);
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void (* map) (GtkWidget *widget);
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void (* unmap) (GtkWidget *widget);
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void (* realize) (GtkWidget *widget);
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void (* unrealize) (GtkWidget *widget);
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void (* draw) (GtkWidget *widget,
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GdkRectangle *area);
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void (* draw_focus) (GtkWidget *widget);
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void (* draw_default) (GtkWidget *widget);
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void (* size_request) (GtkWidget *widget,
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GtkRequisition *requisition);
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void (* size_allocate) (GtkWidget *widget,
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GtkAllocation *allocation);
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void (* state_changed) (GtkWidget *widget,
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GtkStateType previous_state);
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void (* parent_set) (GtkWidget *widget,
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GtkWidget *previous_parent);
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void (* style_set) (GtkWidget *widget,
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GtkStyle *previous_style);
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/* accelerators */
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gint (* add_accelerator) (GtkWidget *widget,
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guint accel_signal_id,
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GtkAccelGroup *accel_group,
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guint accel_key,
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GdkModifierType accel_mods,
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GtkAccelFlags accel_flags);
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void (* remove_accelerator) (GtkWidget *widget,
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GtkAccelGroup *accel_group,
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guint accel_key,
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GdkModifierType accel_mods);
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/* events */
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gint (* event) (GtkWidget *widget,
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GdkEvent *event);
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gint (* button_press_event) (GtkWidget *widget,
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GdkEventButton *event);
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gint (* button_release_event) (GtkWidget *widget,
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GdkEventButton *event);
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gint (* motion_notify_event) (GtkWidget *widget,
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GdkEventMotion *event);
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gint (* delete_event) (GtkWidget *widget,
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GdkEventAny *event);
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gint (* destroy_event) (GtkWidget *widget,
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GdkEventAny *event);
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gint (* expose_event) (GtkWidget *widget,
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GdkEventExpose *event);
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gint (* key_press_event) (GtkWidget *widget,
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GdkEventKey *event);
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gint (* key_release_event) (GtkWidget *widget,
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GdkEventKey *event);
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gint (* enter_notify_event) (GtkWidget *widget,
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GdkEventCrossing *event);
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gint (* leave_notify_event) (GtkWidget *widget,
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GdkEventCrossing *event);
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gint (* configure_event) (GtkWidget *widget,
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GdkEventConfigure *event);
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gint (* focus_in_event) (GtkWidget *widget,
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GdkEventFocus *event);
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gint (* focus_out_event) (GtkWidget *widget,
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GdkEventFocus *event);
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gint (* map_event) (GtkWidget *widget,
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GdkEventAny *event);
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gint (* unmap_event) (GtkWidget *widget,
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GdkEventAny *event);
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gint (* property_notify_event) (GtkWidget *widget,
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GdkEventProperty *event);
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gint (* selection_clear_event) (GtkWidget *widget,
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GdkEventSelection *event);
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gint (* selection_request_event) (GtkWidget *widget,
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GdkEventSelection *event);
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gint (* selection_notify_event) (GtkWidget *widget,
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GdkEventSelection *event);
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gint (* proximity_in_event) (GtkWidget *widget,
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GdkEventProximity *event);
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gint (* proximity_out_event) (GtkWidget *widget,
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GdkEventProximity *event);
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gint (* drag_begin_event) (GtkWidget *widget,
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GdkEventDragBegin *event);
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gint (* drag_request_event) (GtkWidget *widget,
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GdkEventDragRequest *event);
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gint (* drag_end_event) (GtkWidget *widget,
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GdkEvent *event);
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gint (* drop_enter_event) (GtkWidget *widget,
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GdkEventDropEnter *event);
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gint (* drop_leave_event) (GtkWidget *widget,
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GdkEventDropLeave *event);
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gint (* drop_data_available_event)(GtkWidget *widget,
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GdkEventDropDataAvailable *event);
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gint (* visibility_notify_event) (GtkWidget *widget,
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GdkEventVisibility *event);
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gint (* client_event) (GtkWidget *widget,
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GdkEventClient *event);
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gint (* no_expose_event) (GtkWidget *widget,
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GdkEventAny *event);
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gint (* other_event) (GtkWidget *widget,
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GdkEventOther *event);
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/* selection */
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void (* selection_received) (GtkWidget *widget,
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GtkSelectionData *selection_data);
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/* action signals */
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void (* debug_msg) (GtkWidget *widget,
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const gchar *string);
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};
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struct _GtkWidgetAuxInfo
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{
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gint16 x;
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gint16 y;
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gint16 width;
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gint16 height;
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};
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struct _GtkWidgetShapeInfo
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{
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gint16 offset_x;
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gint16 offset_y;
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GdkBitmap *shape_mask;
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};
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GtkType gtk_widget_get_type (void);
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GtkWidget* gtk_widget_new (GtkType type,
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const gchar *first_arg_name,
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...);
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GtkWidget* gtk_widget_newv (GtkType type,
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guint nargs,
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GtkArg *args);
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void gtk_widget_ref (GtkWidget *widget);
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void gtk_widget_unref (GtkWidget *widget);
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void gtk_widget_destroy (GtkWidget *widget);
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void gtk_widget_destroyed (GtkWidget *widget,
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GtkWidget **widget_pointer);
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void gtk_widget_get (GtkWidget *widget,
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GtkArg *arg);
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void gtk_widget_getv (GtkWidget *widget,
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guint nargs,
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GtkArg *args);
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void gtk_widget_set (GtkWidget *widget,
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const gchar *first_arg_name,
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...);
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void gtk_widget_setv (GtkWidget *widget,
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guint nargs,
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GtkArg *args);
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void gtk_widget_unparent (GtkWidget *widget);
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void gtk_widget_show (GtkWidget *widget);
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void gtk_widget_show_now (GtkWidget *widget);
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void gtk_widget_hide (GtkWidget *widget);
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void gtk_widget_show_all (GtkWidget *widget);
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void gtk_widget_hide_all (GtkWidget *widget);
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void gtk_widget_map (GtkWidget *widget);
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void gtk_widget_unmap (GtkWidget *widget);
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void gtk_widget_realize (GtkWidget *widget);
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void gtk_widget_unrealize (GtkWidget *widget);
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void gtk_widget_queue_draw (GtkWidget *widget);
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void gtk_widget_queue_resize (GtkWidget *widget);
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void gtk_widget_draw (GtkWidget *widget,
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GdkRectangle *area);
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void gtk_widget_draw_focus (GtkWidget *widget);
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void gtk_widget_draw_default (GtkWidget *widget);
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void gtk_widget_draw_children (GtkWidget *widget);
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void gtk_widget_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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void gtk_widget_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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void gtk_widget_add_accelerator (GtkWidget *widget,
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const gchar *accel_signal,
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GtkAccelGroup *accel_group,
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guint accel_key,
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guint accel_mods,
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GtkAccelFlags accel_flags);
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void gtk_widget_remove_accelerator (GtkWidget *widget,
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GtkAccelGroup *accel_group,
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guint accel_key,
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guint accel_mods);
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void gtk_widget_remove_accelerators (GtkWidget *widget,
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const gchar *accel_signal,
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gboolean visible_only);
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guint gtk_widget_accelerator_signal (GtkWidget *widget,
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GtkAccelGroup *accel_group,
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guint accel_key,
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guint accel_mods);
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void gtk_widget_freeze_accelerators (GtkWidget *widget);
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void gtk_widget_thaw_accelerators (GtkWidget *widget);
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gint gtk_widget_event (GtkWidget *widget,
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GdkEvent *event);
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void gtk_widget_activate (GtkWidget *widget);
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void gtk_widget_reparent (GtkWidget *widget,
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GtkWidget *new_parent);
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void gtk_widget_popup (GtkWidget *widget,
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gint x,
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gint y);
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gint gtk_widget_intersect (GtkWidget *widget,
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GdkRectangle *area,
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GdkRectangle *intersection);
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gint gtk_widget_basic (GtkWidget *widget);
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void gtk_widget_grab_focus (GtkWidget *widget);
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void gtk_widget_grab_default (GtkWidget *widget);
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void gtk_widget_set_name (GtkWidget *widget,
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const gchar *name);
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gchar* gtk_widget_get_name (GtkWidget *widget);
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void gtk_widget_set_state (GtkWidget *widget,
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GtkStateType state);
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void gtk_widget_set_sensitive (GtkWidget *widget,
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gint sensitive);
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void gtk_widget_set_parent (GtkWidget *widget,
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GtkWidget *parent);
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void gtk_widget_set_parent_window (GtkWidget *widget,
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GdkWindow *parent_window);
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GdkWindow *gtk_widget_get_parent_window (GtkWidget *widget);
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void gtk_widget_set_uposition (GtkWidget *widget,
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gint x,
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gint y);
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void gtk_widget_set_usize (GtkWidget *widget,
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gint width,
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gint height);
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void gtk_widget_set_events (GtkWidget *widget,
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gint events);
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void gtk_widget_set_extension_events (GtkWidget *widget,
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GdkExtensionMode mode);
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GdkExtensionMode gtk_widget_get_extension_events (GtkWidget *widget);
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GtkWidget* gtk_widget_get_toplevel (GtkWidget *widget);
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GtkWidget* gtk_widget_get_ancestor (GtkWidget *widget,
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GtkType widget_type);
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GdkColormap* gtk_widget_get_colormap (GtkWidget *widget);
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GdkVisual* gtk_widget_get_visual (GtkWidget *widget);
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gint gtk_widget_get_events (GtkWidget *widget);
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void gtk_widget_get_pointer (GtkWidget *widget,
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gint *x,
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gint *y);
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gint gtk_widget_is_ancestor (GtkWidget *widget,
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GtkWidget *ancestor);
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gint gtk_widget_is_child (GtkWidget *widget,
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GtkWidget *child);
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/* Hide widget and return TRUE.
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*/
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gint gtk_widget_hide_on_delete (GtkWidget *widget);
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/* Widget styles.
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*/
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void gtk_widget_set_style (GtkWidget *widget,
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GtkStyle *style);
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void gtk_widget_set_rc_style (GtkWidget *widget);
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void gtk_widget_ensure_style (GtkWidget *widget);
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GtkStyle* gtk_widget_get_style (GtkWidget *widget);
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void gtk_widget_restore_default_style (GtkWidget *widget);
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/* Descend recursively and set rc-style on all widgets without user styles */
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void gtk_widget_reset_rc_styles (GtkWidget *widget);
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/* Push/pop pairs, to change default values upon a widget's creation.
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* This will override the values that got set by the
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* gtk_widget_set_default_* () functions.
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*/
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void gtk_widget_push_style (GtkStyle *style);
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void gtk_widget_push_colormap (GdkColormap *cmap);
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void gtk_widget_push_visual (GdkVisual *visual);
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void gtk_widget_push_composite_flag (void);
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void gtk_widget_pop_composite_flag (void);
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void gtk_widget_pop_style (void);
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void gtk_widget_pop_colormap (void);
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void gtk_widget_pop_visual (void);
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/* Set certain default values to be used at widget creation time.
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*/
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void gtk_widget_set_default_style (GtkStyle *style);
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void gtk_widget_set_default_colormap (GdkColormap *colormap);
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void gtk_widget_set_default_visual (GdkVisual *visual);
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GtkStyle* gtk_widget_get_default_style (void);
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GdkColormap* gtk_widget_get_default_colormap (void);
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GdkVisual* gtk_widget_get_default_visual (void);
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/* Counterpart to gdk_window_shape_combine_mask.
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*/
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void gtk_widget_shape_combine_mask (GtkWidget *widget,
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GdkBitmap *shape_mask,
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gint offset_x,
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gint offset_y);
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/* Compute a widget's path in the form "GtkWindow.MyLabel", and
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* return newly alocated strings.
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*/
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void gtk_widget_path (GtkWidget *widget,
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guint *path_length,
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gchar **path,
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gchar **path_reversed);
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void gtk_widget_class_path (GtkWidget *widget,
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guint *path_length,
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gchar **path,
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gchar **path_reversed);
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/* When you get a drag_enter event, you can use this to tell Gtk of other
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* items that are to be dragged as well...
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*/
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void gtk_widget_dnd_drag_add (GtkWidget *widget);
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/* These two functions enable drag and/or drop on a widget,
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* and also let Gtk know what data types will be accepted (use MIME
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* type naming, plus tacking "URL:" on the front for link dragging)
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*/
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void gtk_widget_dnd_drag_set (GtkWidget *widget,
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guint8 drag_enable,
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gchar **type_accept_list,
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guint numtypes);
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void gtk_widget_dnd_drop_set (GtkWidget *widget,
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guint8 drop_enable,
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gchar **type_accept_list,
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guint numtypes,
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guint8 is_destructive_operation);
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/* Used to reply to a DRAG_REQUEST event - if you don't want to
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* give the data then pass in NULL for it
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*/
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void gtk_widget_dnd_data_set (GtkWidget *widget,
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GdkEvent *event,
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gpointer data,
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gulong data_numbytes);
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#if defined (GTK_TRACE_OBJECTS) && defined (__GNUC__)
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# define gtk_widget_ref gtk_object_ref
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# define gtk_widget_unref gtk_object_unref
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#endif /* GTK_TRACE_OBJECTS && __GNUC__ */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GTK_WIDGET_H__ */
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