[Gtk2hs-users] Adjustment bug?

[Vladimir G. <vla...@gm...>]

Hello,

While trying to scroll a ScrolledWindow programmatically (Gtk2Hs 0.9.8
on WinXP), I stumbled on some issues (it doesn't work, and throws some
errors). I attached the glade file and the offending code. The
equivalent code worked in PyGTK, so it's probably not a GTK Runtime
problem. These are the errors I get when pressing the button:

(adj.exe:6652): GLib-GObject-CRITICAL **: g_object_get_property:
assertion `G_IS_VALUE (value)' failed

(adj.exe:6652): GLib-GObject-CRITICAL **: g_value_get_double:
assertion `G_VALUE_HOLDS_DOUBLE (value)' failed

(adj.exe:6652): GLib-GObject-CRITICAL **: g_value_unset: assertion
`G_IS_VALUE (value)' failed

(adj.exe:6652): GLib-GObject-CRITICAL **: g_object_get_property:
assertion `G_IS_VALUE (value)' failed

(adj.exe:6652): GLib-GObject-CRITICAL **: g_value_get_double:
assertion `G_VALUE_HOLDS_DOUBLE (value)' failed

(adj.exe:6652): GLib-GObject-CRITICAL **: g_value_unset: assertion
`G_IS_VALUE (value)' failed