SKGLView.OnPaintSurface(SKPaintGLSurfaceEventArgs) Method

Reference

Definition

Namespace:: SkiaSharp.Views.Forms

Assembly:: SkiaSharp.Views.Forms.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Implement this to draw on the surface.

protected virtual void OnPaintSurface (SkiaSharp.Views.Forms.SKPaintGLSurfaceEventArgs e);

Parameters

e: SKPaintGLSurfaceEventArgs

The event arguments that contain the drawing surface and information.

Examples

protected override void OnPaintSurface (SKPaintGLSurfaceEventArgs e)
{
    // call the base method
    base.OnPaintSurface (e);

    var surface = e.Surface;
    var surfaceWidth = e.BackendRenderTarget.Width;
    var surfaceHeight = e.BackendRenderTarget.Height;

    var canvas = surface.Canvas;

    // draw on the canvas

    canvas.Flush ();
}

Remarks

There are two ways to draw on this surface: by overriding the OnPaintSurface(SKPaintGLSurfaceEventArgs) method, or by attaching a handler to the PaintSurface event.

Important

If this method is overridden, then the base must be called, otherwise the event will not be fired.

Applies to