CustomDrawElement Class
Represents a UIElement that is capable of being custom drawn via the handling of its CustomDraw event.
public class CustomDrawElement : FrameworkElement- Inheritance:
- object Visual UIElement FrameworkElement object
Constructors
CustomDrawElement()
Initializes an instance of the class.
public CustomDrawElement()Methods
GetLayoutClip(Size?)
Returns a geometry for a clipping mask. The mask applies if the layout system attempts to arrange an element that is larger than the available display space.
protected override Geometry? GetLayoutClip(Size? layoutSlotSize)| Parameter | Type | Description |
|---|---|---|
| layoutSlotSize | Size | The size of the part of the element that does visual presentation. |
Returns
- Geometry:
The clipping geometry.
OnCustomDraw(DrawingContext)
Raises the CustomDraw event.
protected virtual void OnCustomDraw(DrawingContext drawingContext)| Parameter | Type | Description |
|---|---|---|
| drawingContext | DrawingContext | The DrawingContext to use. |
OnRender(DrawingContext)
When overridden in a derived class, participates in rendering operations that are directed by the layout system. The rendering instructions for this element are not used directly when this method is invoked, and are instead preserved for later asynchronous use by layout and drawing.
protected override void OnRender(DrawingContext drawingContext)| Parameter | Type | Description |
|---|---|---|
| drawingContext | DrawingContext | The drawing instructions for a specific element. This context is provided to the layout system. |
Events
CustomDraw
Occurs when the element requests to be custom drawn.
public event EventHandler<CustomDrawElementCustomDrawEventArgs> CustomDrawEvent Type
Fields
CustomDrawEvent
Defines the CustomDraw event.
public static readonly RoutedEvent CustomDrawEvent