gdk-window-begin-move-drag (window button root-x root-y timestamp)

window -- a toplevel gdk-window object
button -- a :int with the button being used to drag
root-x -- a :int with the root window x coordinate of mouse click that began the drag
root-y -- a :int with the root window y coordinate of mouse click that began the drag
timestamp -- a :uint with the timestamp of mouse click that began the drag

Begins a window move operation for a toplevel window.

This function assumes that the drag is controlled by the client pointer device, use the function gdk-window-begin-move-drag-for-device to begin a drag with a different device.