gtk_drag_begin_with_coordinates() question

[Igor Korot <ikorot01 gmail com>]

Hi,
In the https://developer.gnome.org/gtk3/stable/gtk3-Drag-and-Drop.html#gtk-drag-begin-with-coordinates
it is missing so I am going to ask here:

This function takes 2 parameters: gint x and gint y.

Which coordinates they should be in: screen or window?

Thank you.