Hi. First of all, for your information, the headers work with VB .NET as well, if you want to code in VB.
Here is a code example in C#, I don't know if I uploaded that version yet. Tell me if it doesn't work, means I didn't.
while (!Window.HasRequestedClose)
{
if (new Pick(camera, Graphics.Width / 2, Graphics.Height / 2, 500).Entity.Class == "Mesh"))
{
// do things
}
}