[gtkmm] Change Mouse cursor

[Ramachandra Putti <ramachandrap dpsl net>]

Hi all,

here i have small code snipet, my main intention is to change the mouse
cursor, but refptr_gdkwindow is NULL, i.e. line if(refptr_gdkwindow) is
never true. any help or suggestions would greatly be appreaciated.

i am using gtkmm-2.0.1

Thanx.

Regards

Ramachandra