Sets our main struct and passes it to the parent class
the main Gtk struct as a void*
the main Gtk struct
the main Gtk struct
the main Gtk struct as a void*
The ::change-value signal is emitted when a scroll action is performed on a range. It allows an application to determine the type of scroll event that occurred and the resultant new value. The application can handle the event itself and return TRUE to prevent further processing. Or, by returning FALSE, it can pass the event to other handlers until the default GTK+ handler is reached. The value parameter is unrounded. An application that overrides the ::change-value signal is responsible for clamping the value to the desired number of decimal digits; the default GTK+ handler clamps the value based on "round_digits". It is not possible to use delayed update policies in an overridden ::change-value handler. TRUE to prevent other handlers from being invoked for the signal, FALSE to propagate the signal further Since 2.6
Virtual function that moves the slider. Used for keybindings.
Emitted when the range value changes.
Gets the current position of the fill level indicator. Since 2.12
Gets whether the range is restricted to the fill level. Since 2.12
Gets whether the range displays the fill level graphically. Since 2.12
Set the new position of the fill level indicator. The "fill level" is probably best described by its most prominent use case, which is an indicator for the amount of pre-buffering in a streaming media player. In that use case, the value of the range would indicate the current play position, and the fill level would be the position up to which the file/stream has been downloaded. This amount of prebuffering can be displayed on the range's trough and is themeable separately from the trough. To enable fill level display, use gtk_range_set_show_fill_level(). The range defaults to not showing the fill level. Additionally, it's possible to restrict the range's slider position to values which are smaller than the fill level. This is controller by gtk_range_set_restrict_to_fill_level() and is by default enabled. Since 2.12
Sets whether the slider is restricted to the fill level. See gtk_range_set_fill_level() for a general description of the fill level concept. Since 2.12
Sets whether a graphical fill level is show on the trough. See gtk_range_set_fill_level() for a general description of the fill level concept. Since 2.12
Get the GtkAdjustment which is the "model" object for GtkRange. See gtk_range_set_adjustment() for details. The return value does not have a reference added, so should not be unreferenced.
Warning gtk_range_set_update_policy has been deprecated since version 2.24 and should not be used in newly-written code. There is no replacement. If you require delayed updates, you need to code it yourself. Sets the update policy for the range. GTK_UPDATE_CONTINUOUS means that anytime the range slider is moved, the range value will change and the value_changed signal will be emitted. GTK_UPDATE_DELAYED means that the value will be updated after a brief timeout where no slider motion occurs, so updates are spaced by a short time rather than continuous. GTK_UPDATE_DISCONTINUOUS means that the value will only be updated when the user releases the button and ends the slider drag operation.
Sets the adjustment to be used as the "model" object for this range widget. The adjustment indicates the current range value, the minimum and maximum range values, the step/page increments used for keybindings and scrolling, and the page size. The page size is normally 0 for GtkScale and nonzero for GtkScrollbar, and indicates the size of the visible area of the widget being scrolled. The page size affects the size of the scrollbar slider.
Gets the value set by gtk_range_set_inverted().
Ranges normally move from lower to higher values as the slider moves from top to bottom or left to right. Inverted ranges have higher values at the top or on the right rather than on the bottom or left.
Warning gtk_range_get_update_policy has been deprecated since version 2.24 and should not be used in newly-written code. There is no replacement. If you require delayed updates, you need to code it yourself. Gets the update policy of range. See gtk_range_set_update_policy().
Sets the step and page sizes for the range. The step size is used when the user clicks the GtkScrollbar arrows or moves GtkScale via arrow keys. The page size is used for example when moving via Page Up or Page Down keys.
Sets the allowable values in the GtkRange, and clamps the range value to be between min and max. (If the range has a non-zero page size, it is clamped between min and max - page-size.)
Gets the current value of the range.
Sets the current value of the range; if the value is outside the minimum or maximum range values, it will be clamped to fit inside them. The range emits the "value-changed" signal if the value changes.
Gets the number of digits to round the value to when it changes. See "change-value". Since 2.24
Sets the number of digits to round the value to when it changes. See "change-value". Since 2.24
Sets the sensitivity policy for the stepper that points to the 'lower' end of the GtkRange's adjustment. Since 2.10
Gets the sensitivity policy for the stepper that points to the 'lower' end of the GtkRange's adjustment. Since 2.10
Sets the sensitivity policy for the stepper that points to the 'upper' end of the GtkRange's adjustment. Since 2.10
Gets the sensitivity policy for the stepper that points to the 'upper' end of the GtkRange's adjustment. Since 2.10
Gets the value set by gtk_range_set_flippable(). Since 2.18
If a range is flippable, it will switch its direction if it is horizontal and its direction is GTK_TEXT_DIR_RTL. See gtk_widget_get_direction(). Since 2.18
This function is useful mainly for GtkRange subclasses. See gtk_range_set_min_slider_size(). Since 2.20
This function returns the area that contains the range's trough and its steppers, in widget->window coordinates. This function is useful mainly for GtkRange subclasses. Since 2.20
This function returns sliders range along the long dimension, in widget->window coordinates. This function is useful mainly for GtkRange subclasses. Since 2.20
This function is useful mainly for GtkRange subclasses. See gtk_range_set_slider_size_fixed(). Since 2.20
Sets the minimum size of the range's slider. This function is useful mainly for GtkRange subclasses. Since 2.20
Sets whether the range's slider has a fixed size, or a size that depends on it's adjustment's page size. This function is useful mainly for GtkRange subclasses. Since 2.20
Description The GtkScrollbar widget is an abstract base class for GtkHScrollbar and GtkVScrollbar. It is not very useful in itself. The position of the thumb in a scrollbar is controlled by the scroll adjustments. See GtkAdjustment for the fields in an adjustment - for GtkScrollbar, the "value" field represents the position of the scrollbar, which must be between the "lower" field and "upper - page_size." The "page_size" field represents the size of the visible scrollable area. The "step_increment" and "page_increment" fields are used when the user asks to step down (using the small stepper arrows) or page down (using for example the PageDown key).