gdk-window-constrain-size (geometry flags width height)

geometry -- a gdk-geometry structure
flags -- a mask of type gdk-window-hints indicating what portions of geometry are set
width -- a :int with the desired width of the window
height -- a :int with the desired height of the window

new-width -- :int with the resulting width
new-height -- :int with the resulting height

Constrains a desired width and height according to a set of geometry hints such as minimum and maximum size.