void Render()
{
if (resized)
{
Resize();
resized = false;
}
d2dDeviceContext.BeginDraw();
d2dDeviceContext.Clear(Color4.White);
d2dDeviceContext.PushAxisAlignedClip(new RectangleF(5, 5, Child.Width - 10, Child.Height - 10), AntialiasMode.Aliased);
d2dDeviceContext.Transform = Matrix3x2.Translation(Child.Width / 2f / Scale + Translation.X, Child.Height / 2f / Scale + Translation.Y) * Matrix3x2.Scaling(Scale);
d2dDeviceContext.AntialiasMode = AntialiasMode.Aliased;
d2dDeviceContext.DrawLine(new Vector2(0, int.MinValue), new Vector2(0, int.MaxValue), RasterDrawBrush, 1 / Scale);
d2dDeviceContext.DrawLine(new Vector2(int.MinValue, 0), new Vector2(int.MaxValue, 0), RasterDrawBrush, 1 / Scale);
d2dDeviceContext.AntialiasMode = AntialiasMode.PerPrimitive;
RenderGeometry();
d2dDeviceContext.Transform = Matrix3x2.Identity;
d2dDeviceContext.PopAxisAlignedClip();
d2dDeviceContext.EndDraw();
swapChain.Present(0, PresentFlags.None);
}
public void EndDraw()
{
// Remove the transform and clip applied in BeginDraw since
// the target area can change on every update.
d2dContext.Transform = Matrix3x2.Identity;
d2dContext.PopAxisAlignedClip();
// Remove the render target and end drawing.
d2dContext.EndDraw();
d2dContext.Target = null;
// Query for ISurfaceImageSourceNative interface.
using (var sisNative = ComObject.QueryInterface <ISurfaceImageSourceNative>(this))
sisNative.EndDraw();
}