GtkWidgetFlags

Tells about certain properties of the widget. GTK_TOPLEVEL widgets without a real parent, as there are GtkWindows and GtkMenus have this flag set throughout their lifetime. Toplevel widgets always contain their own GdkWindow. GTK_NO_WINDOW Indicative for a widget that does not provide its own GdkWindow. Visible action (e.g. drawing) is performed on the parent's GdkWindow. GTK_REALIZED Set by gtk_widget_realize(), unset by gtk_widget_unrealize(). A realized widget has an associated GdkWindow. GTK_MAPPED Set by gtk_widget_map(), unset by gtk_widget_unmap(). Only realized widgets can be mapped. It means that gdk_window_show() has been called on the widgets window(s). GTK_VISIBLE Set by gtk_widget_show(), unset by gtk_widget_hide(). Implies that a widget will be mapped as soon as its parent is mapped. GTK_SENSITIVE Set and unset by gtk_widget_set_sensitive(). The sensitivity of a widget determines whether it will receive certain events (e.g. button or key presses). One premise for the widget's sensitivity is to have this flag set. GTK_PARENT_SENSITIVE Set and unset by gtk_widget_set_sensitive() operations on the parents of the widget. This is the second premise for the widget's sensitivity. Once it has GTK_SENSITIVE and GTK_PARENT_SENSITIVE set, its state is effectively sensitive. This is expressed (and can be examined) by the GTK_WIDGET_IS_SENSITIVE macro. GTK_CAN_FOCUS Determines whether a widget is able to handle focus grabs. GTK_HAS_FOCUS Set by gtk_widget_grab_focus() for widgets that also have GTK_CAN_FOCUS set. The flag will be unset once another widget grabs the focus. GTK_CAN_DEFAULT The widget is allowed to receive the default action via gtk_widget_grab_default() and will reserve space to draw the default if possible GTK_HAS_DEFAULT The widget currently is receiving the default action and should be drawn appropriately if possible GTK_HAS_GRAB Set by gtk_grab_add(), unset by gtk_grab_remove(). It means that the widget is in the grab_widgets stack, and will be the preferred one for receiving events other than ones of cosmetic value. GTK_RC_STYLE Indicates that the widget's style has been looked up through the rc mechanism. It does not imply that the widget actually had a style defined through the rc mechanism. GTK_COMPOSITE_CHILD Indicates that the widget is a composite child of its parent; see gtk_widget_push_composite_child(), gtk_widget_pop_composite_child(). GTK_NO_REPARENT Unused since before GTK+ 1.2, will be removed in a future version. GTK_APP_PAINTABLE Set and unset by gtk_widget_set_app_paintable(). Must be set on widgets whose window the application directly draws on, in order to keep GTK+ from overwriting the drawn stuff. See the section called “App-paintable widgets” for a detailed description of this flag. GTK_RECEIVES_DEFAULT The widget when focused will receive the default action and have GTK_HAS_DEFAULT set even if there is a different widget set as default. GTK_DOUBLE_BUFFERED Set and unset by gtk_widget_set_double_buffered(). Indicates that exposes done on the widget should be double-buffered. See the section called “Double buffering” for a detailed discussion of how double-buffering works in GTK+ and why you may want to disable it for special cases. GTK_NO_SHOW_ALL