The xfce4.gui.create_header function doesn't accept if one pass None instead of a pixbuf, i.e. to create an header without an icon. libxfcegui4's xfce_create_header does accept NULL instead of a pixbuf: http://www.xfce.org/documentation/api-4.2/libxfcegui4/libxfcegui4-dialogs.html#xfce-create-header Reproducible: Always Steps to Reproduce:
Created attachment 383 Workaround
fixed in svn
(In reply to comment #2) > fixed in svn Thanks, it works.