Sets our main struct and passes it to the parent class
Warning gtk_style_new has been deprecated since version 3.0 and should not be used in newly-written code. Use GtkStyleContext Creates a new GtkStyle.
Emitted when the style has been initialized for a particular visual. Connecting to this signal is probably seldom useful since most of the time applications and widgets only deal with styles that have been already realized. Since 2.4
Emitted when the aspects of the style specific to a particular visual is being cleaned up. A connection to this signal can be useful if a widget wants to cache objects as object data on GtkStyle. This signal provides a convenient place to free such cached objects. Since 2.4
Warning gtk_style_apply_default_background has been deprecated since version 3.0 and should not be used in newly-written code. Use GtkStyleContext instead
Warning gtk_style_attach has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_widget_style_attach() instead Attaches a style to a window; this process allocates the colors and creates the GC's for the style - it specializes it to a particular visual. The process may involve the creation of a new style if the style has already been attached to a window with a different style and visual. Since this function may return a new object, you have to use it
Warning gtk_style_copy has been deprecated since version 3.0 and should not be used in newly-written code. Use GtkStyleContext instead Creates a copy of the passed in GtkStyle object.
Warning gtk_style_detach has been deprecated since version 3.0 and should not be used in newly-written code. Use GtkStyleContext instead Detaches a style from a window. If the style is not attached to any windows anymore, it is unrealized. See gtk_style_attach().
the main Gtk struct as a void*
Queries the value of a style property corresponding to a widget class is in the given style. Since 2.16
Non-vararg variant of gtk_style_get(). Used primarily by language bindings. Since 2.16
Returns whether style has an associated GtkStyleContext.
Warning gtk_style_lookup_color has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_style_context_lookup_color() instead Looks up color_name in the style's logical color mappings, filling in color and returning TRUE if found, otherwise returning FALSE. Do not cache the found mapping, because it depends on the GtkStyle and might change when a theme switch occurs. Since 2.10
Warning gtk_style_lookup_icon_set has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_style_context_lookup_icon_set() instead Looks up stock_id in the icon factories associated with style and the default icon factory, returning an icon set if found, otherwise NULL.
Warning gtk_paint_arrow has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_arrow() instead Draws an arrow in the given rectangle on cr using the given parameters. arrow_type determines the direction of the arrow.
Warning gtk_paint_box has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_frame() and gtk_render_background() instead Draws a box on cr with the given parameters.
Warning gtk_paint_box_gap has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_frame_gap() instead Draws a box in cr using the given style and state and shadow type, leaving a gap in one side.
Warning gtk_paint_check has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_check() instead Draws a check button indicator in the given rectangle on cr with the given parameters.
Warning gtk_paint_diamond has been deprecated since version 3.0 and should not be used in newly-written code. Use cairo instead Draws a diamond in the given rectangle on window using the given parameters.
Warning gtk_paint_expander has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_expander() instead Draws an expander as used in GtkTreeView. x and y specify the center the expander. The size of the expander is determined by the "expander-size" style property of widget. (If widget is not specified or doesn't have an "expander-size" property, an unspecified default size will be used, since the caller doesn't have sufficient information to position the expander, this is likely not useful.) The expander is expander_size pixels tall in the collapsed position and expander_size pixels wide in the expanded position.
Warning gtk_paint_extension has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_extension() instead Draws an extension, i.e. a notebook tab.
Warning gtk_paint_flat_box has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_frame() and gtk_render_background() instead Draws a flat box on cr with the given parameters.
Warning gtk_paint_focus has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_focus() instead Draws a focus indicator around the given rectangle on cr using the given style.
Warning gtk_paint_handle has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_handle() instead Draws a handle as used in GtkHandleBox and GtkPaned.
Warning gtk_paint_hline has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_line() instead Draws a horizontal line from (x1, y) to (x2, y) in cr using the given style and state.
Warning gtk_paint_layout has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_layout() instead Draws a layout on cr using the given parameters.
Warning gtk_paint_option has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_option() instead Draws a radio button indicator in the given rectangle on cr with the given parameters.
Warning gtk_paint_resize_grip has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_handle() instead Draws a resize grip in the given rectangle on cr using the given parameters.
Warning gtk_paint_shadow has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_frame() instead Draws a shadow around the given rectangle in cr using the given style and state and shadow type.
Warning gtk_paint_shadow_gap has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_frame_gap() instead Draws a shadow around the given rectangle in cr using the given style and state and shadow type, leaving a gap in one side.
Warning gtk_paint_slider has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_slider() instead Draws a slider in the given rectangle on cr using the given style and orientation.
Warning gtk_paint_spinner has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_activity() instead Draws a spinner on window using the given parameters.
Warning gtk_paint_tab has been deprecated since version 3.0 and should not be used in newly-written code. Use cairo instead Draws an option menu tab (i.e. the up and down pointing arrows) in the given rectangle on cr using the given parameters.
Warning gtk_paint_vline has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_line() instead Draws a vertical line from (x, y1_) to (x, y2_) in cr using the given style and state.
Warning gtk_style_render_icon has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_render_icon_pixbuf() instead Renders the icon specified by source at the given size according to the given parameters and returns the result in a pixbuf.
Warning gtk_style_set_background has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_style_context_set_background() instead Sets the background of window to the background color or pixmap specified by style for the given state.
Warning gtk_draw_insertion_cursor has been deprecated since version 3.4 and should not be used in newly-written code. Use gtk_render_insertion_cursor() instead. Draws a text caret on cr at location. This is not a style function but merely a convenience function for drawing the standard cursor shape.
the main Gtk struct
the main Gtk struct
the main Gtk struct as a void*
Gets a D Object from the objects table of associations.
The notify signal is emitted on an object when one of its properties has been changed. Note that getting this signal doesn't guarantee that the value of the property has actually changed, it may also be emitted when the setter for the property is called to reinstate the previous value.
Installs a new property. This is usually done in the class initializer. Note that it is possible to redefine a property in a derived class, by installing a property with the same name. This can be useful at times, e.g. to change the range of allowed values or the default value.
Installs new properties from an array of GParamSpecs. This is usually done in the class initializer. The property id of each property is the index of each GParamSpec in the pspecs array. The property id of 0 is treated specially by GObject and it should not be used to store a GParamSpec. This function should be used if you plan to use a static array of GParamSpecs and g_object_notify_by_pspec(). For instance, this Since 2.26
Looks up the GParamSpec for a property of a class.
Get an array of GParamSpec* for all properties of a class.
Registers property_id as referring to a property with the name name in a parent class or in an interface implemented by oclass. This allows this class to override a property implementation in a parent class or to provide the implementation of a property from an interface. Note Internally, overriding is implemented by creating a property of type GParamSpecOverride; generally operations that query the properties of the object class, such as g_object_class_find_property() or g_object_class_list_properties() will return the overridden property. However, in one case, the construct_properties argument of the constructor virtual function, the GParamSpecOverride is passed instead, so that the param_id field of the GParamSpec will be correct. For virtually all uses, this makes no difference. If you need to get the overridden property, you can call g_param_spec_get_redirect_target(). Since 2.4
Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created GParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property. This function is meant to be called from the interface's default vtable initialization function (the class_init member of GTypeInfo.) It must not be called after after class_init has been called for any object types implementing this interface. Since 2.4
Find the GParamSpec with the given name for an interface. Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek(). Since 2.4
Lists the properties of an interface.Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek(). Since 2.4
Increases the reference count of object.
Decreases the reference count of object. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).
Increase the reference count of object, and possibly remove the floating reference, if object has a floating reference. In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one. Since 2.10
Clears a reference to a GObject. object_ptr must not be NULL. If the reference is NULL then this function does nothing. Otherwise, the reference count of the object is decreased and the pointer is set to NULL. This function is threadsafe and modifies the pointer atomically, using memory barriers where needed. A macro is also included that allows this function to be used without pointer casts. Since 2.28
Checks whether object has a floating reference. Since 2.10
This function is intended for GObject implementations to re-enforce a floating object reference. Doing this is seldom required: all GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink(). Since 2.10
Adds a weak reference callback to an object. Weak references are used for notification when an object is finalized. They are called "weak references" because they allow you to safely hold a pointer to an object without calling g_object_ref() (g_object_ref() adds a strong reference, that is, forces the object to stay alive). Note that the weak references created by this method are not thread-safe: they cannot safely be used in one thread if the object's last g_object_unref() might happen in another thread. Use GWeakRef if thread-safety is required.
Removes a weak reference callback to an object.
Adds a weak reference from weak_pointer to object to indicate that the pointer located at weak_pointer_location is only valid during the lifetime of object. When the object is finalized, weak_pointer will be set to NULL. Note that as with g_object_weak_ref(), the weak references created by this method are not thread-safe: they cannot safely be used in one thread if the object's last g_object_unref() might happen in another thread. Use GWeakRef if thread-safety is required.
Removes a weak reference from object that was previously added using g_object_add_weak_pointer(). The weak_pointer_location has to match the one used with g_object_add_weak_pointer().
Increases the reference count of the object by one and sets a callback to be called when all other references to the object are dropped, or when this is already the last reference to the object and another reference is established. This functionality is intended for binding object to a proxy object managed by another memory manager. This is done with two paired references: the strong reference added by g_object_add_toggle_ref() and a reverse reference to the proxy object which is either a strong reference or weak reference. The setup is that when there are no other references to object, only a weak reference is held in the reverse direction from object to the proxy object, but when there are other references held to object, a strong reference is held. The notify callback is called when the reference from object to the proxy object should be toggled from strong to weak (is_last_ref true) or weak to strong (is_last_ref false). Since a (normal) reference must be held to the object before calling g_object_add_toggle_ref(), the initial state of the reverse link is always strong. Multiple toggle references may be added to the same gobject, however if there are multiple toggle references to an object, none of them will ever be notified until all but one are removed. For this reason, you should only ever use a toggle reference if there is important state in the proxy object. Since 2.8
Removes a reference added with g_object_add_toggle_ref(). The reference count of the object is decreased by one. Since 2.8
Emits a "notify" signal for the property property_name on object. When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.
Emits a "notify" signal for the property specified by pspec on object. This function omits the property name lookup, hence it is faster than g_object_notify(). One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with Since 2.26
Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one "notify" signal is emitted for each property modified while the object is frozen. This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.
Reverts the effect of a previous call to g_object_freeze_notify(). The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted. Duplicate notifications for each property are squashed so that at most one "notify" signal is emitted for each property. It is an error to call this function when the freeze count is zero.
Gets a named field from the objects table of associations (see g_object_set_data()).
Each object carries around a table of associations from strings to pointers. This function lets you set an association. If the object already had an association with that name, the old association will be destroyed.
Like g_object_set_data() except it adds notification for when the association is destroyed, either by setting it to a different value or when the object is destroyed. Note that the destroy callback is not called if data is NULL.
Remove a specified datum from the object's data associations, without invoking the association's destroy handler.
This is a variant of g_object_get_data() which returns a 'duplicate' of the value. dup_func defines the meaning of 'duplicate' in this context, it could e.g. take a reference on a ref-counted object. If the key is not set on the object then dup_func will be called with a NULL argument. Note that dup_func is called while user data of object is locked. This function can be useful to avoid races when multiple threads are using object data on the same key on the same object. Since 2.34
Compares the user data for the key key on object with oldval, and if they are the same, replaces oldval with newval. This is like a typical atomic compare-and-exchange operation, for user data on an object. If the previous value was replaced then ownership of the old value (oldval) is passed to the caller, including the registered destroy notify for it (passed out in old_destroy). Its up to the caller to free this as he wishes, which may or may not include using old_destroy as sometimes replacement should not destroy the object in the normal way. Return: TRUE if the existing value for key was replaced by newval, FALSE otherwise. Since 2.34
This function gets back user data pointers stored via g_object_set_qdata().
This sets an opaque, named pointer on an object. The name is specified through a GQuark (retrived e.g. via g_quark_from_static_string()), and the pointer can be gotten back from the object with g_object_get_qdata() until the object is finalized. Setting a previously set user data pointer, overrides (frees) the old pointer set, using NULL as pointer essentially removes the data stored.
This function works like g_object_set_qdata(), but in addition, a void (*destroy) (gpointer) function may be specified which is called with data as argument when the object is finalized, or the data is being overwritten by a call to g_object_set_qdata() with the same quark.
This function gets back user data pointers stored via g_object_set_qdata() and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update
This is a variant of g_object_get_qdata() which returns a 'duplicate' of the value. dup_func defines the meaning of 'duplicate' in this context, it could e.g. take a reference on a ref-counted object. If the quark is not set on the object then dup_func will be called with a NULL argument. Note that dup_func is called while user data of object is locked. This function can be useful to avoid races when multiple threads are using object data on the same key on the same object. Since 2.34
Compares the user data for the key quark on object with oldval, and if they are the same, replaces oldval with newval. This is like a typical atomic compare-and-exchange operation, for user data on an object. If the previous value was replaced then ownership of the old value (oldval) is passed to the caller, including the registered destroy notify for it (passed out in old_destroy). Its up to the caller to free this as he wishes, which may or may not include using old_destroy as sometimes replacement should not destroy the object in the normal way. Return: TRUE if the existing value for quark was replaced by newval, FALSE otherwise. Since 2.34
Sets a property on an object.
Gets a property of an object. value must have been initialized to the expected type of the property (or a type to which the expected type can be transformed) using g_value_init(). In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset(). Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.
Sets properties on an object.
Gets properties of an object. In general, a copy is made of the property contents and the caller is responsible for freeing the memory in the appropriate manner for the type, for instance by calling g_free() or g_object_unref(). See g_object_get().
This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling g_closure_invalidate() on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, g_object_ref() and g_object_unref() are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.
Releases all references to other objects. This can be used to break reference cycles. This functions should only be called from object system implementations.
A GtkStyle object encapsulates the information that provides the look and feel for a widget.
Warning
In GTK+ 3.0, GtkStyle has been deprecated and replaced by GtkStyleContext.
Each GtkWidget has an associated GtkStyle object that is used when rendering that widget. Also, a GtkStyle holds information for the five possible widget states though not every widget supports all five states; see GtkStateType.
Usually the GtkStyle for a widget is the same as the default style that is set by GTK+ and modified the theme engine.
Usually applications should not need to use or modify the GtkStyle of their widgets.