OpenEuphoria

Wonder if someone else has this issue. I am trying to get EuGTK with GTK 3.0 going on Windows 7, Euphoria 4.1.0. What I basically do is:

atom gtk = open_dll("libgtk-3-0.dll") 
atom f = define_c_func(gtk, "gtk_init_check", {C_POINTER, C_POINTER}, C_INT) 
c_func(f, {NULL, NULL}) 

Now when I run 'eui test.ex' the first 2 statements complete fine, but the third crashes the application and GDB reports a segmentation fault. I am using GTK 3.10.4 32-bit. Can anyone provide me with some hints?. The said function is found here https://developer.gnome.org/gtk3/stable/gtk3-General.html#gtk-init-check .