gdk4/org.gtkkn.bindings.gdk/DrawContext

DrawContext

abstract class DrawContext(val gdkDrawContextPointer: <Error class: unknown class><<Error class: unknown class>>)(source)

Base class for objects implementing different rendering methods.

GdkDrawContext is the base object used by contexts implementing different rendering methods, such as class@Gdk.CairoContext or class@Gdk.GLContext. It provides shared functionality between those contexts.

You will always interact with one of those subclasses.

A GdkDrawContext is always associated with a single toplevel surface.

Inheritors

Constructors

Link copied to clipboard
constructor(gdkDrawContextPointer: <Error class: unknown class><<Error class: unknown class>>)

Types

Link copied to clipboard
object Companion
Link copied to clipboard
class DrawContextImpl(pointer: <Error class: unknown class><<Error class: unknown class>>) : DrawContext

The DrawContextImpl type represents a native instance of the abstract DrawContext class.

Properties

Link copied to clipboard
open val display: Display?

The GdkDisplay used to create the GdkDrawContext.

Link copied to clipboard
val gdkDrawContextPointer: <Error class: unknown class><<Error class: unknown class>>
Link copied to clipboard
open val surface: Surface?

The GdkSurface the context is bound to.

Functions

Link copied to clipboard
open fun beginFrame(region: <Error class: unknown class>)

Indicates that you are beginning the process of redrawing @region on the @context's surface.

Link copied to clipboard
open fun endFrame()

Ends a drawing operation started with gdk_draw_context_begin_frame().

Link copied to clipboard
open fun getFrameRegion(): <Error class: unknown class>?

Retrieves the region that is currently being repainted.

Link copied to clipboard
open fun isInFrame(): Boolean

Returns true if @context is in the process of drawing to its surface.