Class GLWidget

The GLWidget is a GTK widget for which an OpenGL context can be used to draw arbitrary graphics.

Inheritance

GLArea

GLWidget

Namespace: OpenTK

Assembly: cs.temp.dll.dll

Syntax

[CLSCompliant(false)]
public class GLWidget : GLArea

Constructors

GLWidget()

Initializes a new instance of the GLWidget class.

Declaration

public GLWidget()

GLWidget(GraphicsMode)

Constructs a new GLWidget using a given GraphicsMode

Declaration

public GLWidget(GraphicsMode graphicsMode)

Parameters

Type	Name	Description
GraphicsMode	graphicsMode

GLWidget(GraphicsMode, Int32, Int32, GraphicsContextFlags)

Initializes a new instance of the GLWidget class.

Declaration

public GLWidget(GraphicsMode graphicsMode, int glVersionMajor, int glVersionMinor, GraphicsContextFlags contextFlags)

Parameters

Type	Name	Description
GraphicsMode	graphicsMode	The which the widget should be constructed with.
System.Int32	glVersionMajor	The major OpenGL version to attempt to initialize.
System.Int32	glVersionMinor	The minor OpenGL version to attempt to initialize.
GraphicsContextFlags	contextFlags	Any flags which should be used during initialization of the .

Properties

ContextFlags

The set ContextFlags for this widget.

Declaration

public GraphicsContextFlags ContextFlags { get; }

Property Value

Type	Description
GraphicsContextFlags

DeltaTime

Gets the time taken to render the last frame (in seconds).

Declaration

public double DeltaTime { get; }

Property Value

Type	Description
System.Double

Methods

Destroy()

Destroys this , disposing it and destroying it in the context of GTK.

Declaration

public override void Destroy()

Dispose(Boolean)

Disposes the current object, releasing any native resources it was using.

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

Finalize()

Destructs this object.

Declaration

protected void Finalize()

OnCreateContext()

Declaration

protected override GLContext OnCreateContext()

Returns

Type	Description
GLContext

OnDrawn(Cairo.Context)

Called when the widget needs to be (fully or partially) redrawn.

Declaration

protected override bool OnDrawn(Cairo.Context cr)

Parameters

Type	Name	Description
Cairo.Context	cr

Returns

Type	Description
System.Boolean

OnInitialized()

Invokes the Initialized event.

Declaration

protected virtual void OnInitialized()

OnShuttingDown()

Invokes the ShuttingDown event.

Declaration

protected virtual void OnShuttingDown()

Events

GraphicsContextInitialized

Called when the first is created in the case where GraphicsContext.ShareContexts == true;

Declaration

public static event EventHandler GraphicsContextInitialized

Event Type

Type	Description
System.EventHandler

GraphicsContextShuttingDown

Called when the first is being destroyed in the case where GraphicsContext.ShareContext == true;

Declaration

public static event EventHandler GraphicsContextShuttingDown

Event Type

Type	Description
System.EventHandler

Initialized

Called when this GLWidget has finished initializing and has a valid .

Declaration

public event EventHandler Initialized

Event Type

Type	Description
System.EventHandler

ShuttingDown

Called when this GLWidget is being disposed.

Declaration

public event EventHandler ShuttingDown

Event Type

Type	Description
System.EventHandler