DoNETModal — wait until the .NET window is closed

DoNETModeless — simultaneous interaction with the kernel

ShowNETWindow — display the .NET form in the foreground

ShowNETConsole — show Console.out and Console.error output in a separate window

Events and Callback Functions

AddEventHandler, RemoveEventHandler — call Wolfram Language functions when events fire

NETNewDelegate, DefineNETDelegate — create delegates that call the Wolfram Language

MathPictureBox, DoubleBufferedPanel — graphics and drawing from the Wolfram Language