Initialize a new Surface.

Create a new popup surface.

The surface will be attached to @parent and can be positioned relative to it using Gdk::Popup#present.

Creates a new toplevel surface.

Returns the type id (GType) registered in GLib type system.

Emits a short beep associated to @surface.

If the display of @surface does not support per-surface beeps, emits a short beep on the display just as Gdk::Display#beep.

Creates a new Gdk::CairoContext for rendering on @surface.

Creates a new Gdk::GLContext for the Gdk::Surface.

The context is disconnected from any particular surface or surface. If the creation of the Gdk::GLContext failed, @error will be set. Before using the returned Gdk::GLContext, you will need to call Gdk::GLContext#make_current or Gdk::GLContext#realize.

Create a new Cairo surface that is as compatible as possible with the given @surface.

For example the new surface will have the same fallback resolution and font options as @surface. Generally, the new surface will also use the same backend as @surface, unless that is not possible for some reason. The type of the returned surface may be examined with cairo_::surface_get_type().

Initially the surface contents are all 0 (transparent if contents have transparency, black otherwise.)

This function always returns a valid pointer, but it will return a pointer to a “nil” surface if @other is already in an error state or any other error occurs.

Creates a new Gdk::VulkanContext for rendering on @surface.

If the creation of the Gdk::VulkanContext failed, @error will be set.

Retrieves a Gdk::Cursor pointer for the cursor currently set on the Gdk::Surface.

If the return value is nil then there is no custom cursor set on the surface, and it is using the cursor for its parent surface.

Use Gdk::Surface#cursor= to unset the cursor of the surface.

Sets the default mouse pointer for a Gdk::Surface.

Passing nil for the @cursor argument means that @surface will use the cursor of its parent surface. Most surfaces should use this default. Note that @cursor must be for the same display as @surface.

Use Gdk::Cursor#new_from_name or Gdk::Cursor#new_from_texture to create the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR.

Destroys the window system resources associated with @surface and decrements @surface's reference count.

The window system resources for all children of @surface are also destroyed, but the children’s reference counts are not decremented.

Note that a surface will not be destroyed automatically when its reference count reaches zero. You must call this function yourself before that happens.

Retrieves a Gdk::Cursor pointer for the @device currently set on the specified Gdk::Surface.

If the return value is nil then there is no custom cursor set on the specified surface, and it is using the cursor for its parent surface.

Use Gdk::Surface#cursor= to unset the cursor of the surface.

Obtains the current device position and modifier state.

The position is given in coordinates relative to the upper left corner of @surface.

Gets the Gdk::Display associated with a Gdk::Surface.

Gets the frame clock for the surface.

The frame clock for a surface never changes unless the surface is reparented to a new toplevel surface.

Returns the height of the given @surface.

Surface size is reported in ”application pixels”, not ”device pixels” (see Gdk::Surface#scale_factor).

Hide the surface.

For toplevel surfaces, withdraws them, so they will no longer be known to the window manager; for all surfaces, unmaps them, so they won’t be displayed. Normally done automatically as part of Gtk::Widget#hide.

Apply the region to the surface for the purpose of event handling.

Mouse events which happen while the pointer position corresponds to an unset bit in the mask will be passed on the surface below @surface.

An input region is typically used with RGBA surfaces. The alpha channel of the surface defines which pixels are invisible and allows for nicely antialiased borders, and the input region controls where the surface is “clickable”.

Use Gdk::Display#supports_input_shapes to find out if a particular backend supports input regions.

Check to see if a surface is destroyed.

Checks whether the surface has been mapped.

A surface is mapped with Gdk::Toplevel#present or Gdk::Popup#present.

Marks a region of the Gdk::Surface as opaque.

For optimisation purposes, compositing window managers may like to not draw obscured regions of surfaces, or turn off blending during for these regions. With RGB windows with no transparency, this is just the shape of the window, but with ARGB32 windows, the compositor does not know what regions of the window are transparent or not.

This function only works for toplevel surfaces.

GTK will update this property automatically if the @surface background is opaque, as we know where the opaque regions are. If your surface background is not opaque, please update this property in your Gtk::Widget#css_changed handler.

Forces a Gdk::Surface::#render signal emission for @surface to be scheduled.

This function is useful for implementations that track invalid regions on their own.

Request a layout phase from the surface's frame clock.

See Gdk::FrameClock#request_phase.

Returns the internal scale factor that maps from surface coordinates to the actual device pixels.

On traditional systems this is 1, but on very high density outputs this can be a higher value (often 2). A higher value means that drawing is automatically scaled up to a higher resolution, so any code doing drawing will automatically look nicer. However, if you are supplying pixel-based data the scale value can be used to determine whether to use a pixel resource with higher resolution data.

The scale of a surface may change during runtime.

Sets a specific Gdk::Cursor for a given device when it gets inside @surface.

Passing nil for the @cursor argument means that @surface will use the cursor of its parent surface. Most surfaces should use this default.

Use Gdk::Cursor#new_from_name or Gdk::Cursor#new_from_texture to create the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR.

Translates coordinates between two surfaces.

Note that this only works if @to and @from are popups or transient-for to the same toplevel (directly or indirectly).

Returns the width of the given @surface.

Surface size is reported in ”application pixels”, not ”device pixels” (see Gdk::Surface#scale_factor).