gdk:window-new (parent attributes mask)

parent -- a gdk:window object, or nil to create the window as a child of the default root window for the default display
attributes -- a gdk:window-attr instance with the attributes of type of the new window
mask -- a gdk:window-attributes-type mask indicating which fields in attributes are valid

The new gdk:window object.

Creates a new window using the attributes from attributes. See the gdk:window-attr and gdk:window-attributes-type documentation for more details.

Note: To use this on displays other than the default display, parent must be specified.