partial class Examples
{
  public static Result ViewportResolution(RhinoDoc doc)
  {
    var active_viewport = doc.Views.ActiveView.ActiveViewport;
    RhinoApp.WriteLine("Name = {0}: Width = {1}, Height = {2}",
      active_viewport.Name, active_viewport.Size.Width, active_viewport.Size.Height);
    return Result.Success;
  }
}

from scriptcontext import doc

activeViewport = doc.Views.ActiveView.ActiveViewport
print("Name = {0}: Width = {1}, Height = {2}".format(
    activeViewport.Name, activeViewport.Size.Width, activeViewport.Size.Height))