How to use the GDI+ drawing in WPF?

Question

I want to use the GDI+ drawing in my WPF control.

Answer 1

@Jeremiah Morrill's solution is what you'd do at the core. However, Microsoft was nice enough to provide some interop methods:

using System.Windows.Interop;
using Gdi = System.Drawing;

using (var tempBitmap = new Gdi.Bitmap(width, height))
{
    using (var g = Gdi.Graphics.FromImage(tempBitmap))
    {
        // Your GDI drawing here.
    }

    // Copy GDI bitmap to WPF bitmap.
    var hbmp = tempBitmap.GetHbitmap();
    var options = BitmapSizeOptions.FromEmptyOptions();
    this.WpfTarget.Source = Imaging.CreateBitmapSourceFromHBitmap(hbmp,
        IntPtr.Zero, Int32Rect.Empty, options);
}

// Redraw the WPF Image control.
this.WpfTarget.InvalidateMeasure();
this.WpfTarget.InvalidateVisual();