What is a GdkScreen?

[Johannes Sasongko <sasongko gmail com>]

Hi,

If I understand correctly, a GdkDisplay is basically an X server
instance. A monitor is, well, a monitor. GdkScreen is supposed to be
somewhere in the middle. The GDK multihead documentation has this to
say about the topic:

> GdkScreen objects are the GDK representation of a physical screen.

Yet that sounds like the definition of a monitor.

How does this work, really? In what case do we have multiple screens
in one display?

Regards,
Johannes