[Haskell-cafe] Problem resizing widget contained in window

I created a window, like so: Gtk.windowSetTitle win name Gtk.widgetSetName win "Hieroglyph" Gtk.onDestroy win (exitWith ExitSuccess) Gtk.windowSetDefaultSize win w h Gtk.containerResizeChildren win And an GLDrawingArea like so: config ← Gtk.glConfigNew [Gtk.GLModeRGBA, Gtk.GLModeMultiSample, Gtk.GLModeDouble, Gtk.GLModeDepth, Gtk.GLModeAlpha] area ← Gtk.glDrawingAreaNew config Gtk.onRealize area ◊ GL.drawBuffer $= GL.BackBuffers Gtk.onExpose area (λ_ → renderOnExpose bus ≫ return True) and finally show it like this: Gtk.containerAdd win area Gtk.widgetShowAll win Now, if someone resizes the window, the GLArea does not appear to resize along with it. Did I screw something up? -- Jeff