Hi,

currently, PGTK Emacs shows an empty 200x200 px GTK window immediately
when x-create-frame is called, and it takes some time until the "real"
Emacs frame is shown. Changing this function to set the visibility flag
only on the child widgets of the GTK window and leaving the parent
window hidden until pgtk_make_frame_visible is called gives a much
better impression when starting Emacs.

-- 
Jindrich Makovicka