Hi Franz,
If you are talking about Form.Size property then: Yes.
It includes everything.
The same results you get if you use: Control.Height and Control.Width or
Control.Bounds. All those properties can be used to get the size of the form
in screen coordinates.
If you want to get the form size in desktop coordinates you can use
Form.DesktopBounds.
If you want to get the size of the client area unly use Form.ClientSize or
Control.ClientRectangle.