gdk_device_get_history moved to gdk/gdkinput.c like the other backends

gdk_device_get_history moved to gdk/gdkinput.c like the other backends

2001-07-20  Hans Breuer  <hans@breuer.org>

	* gdk/win32/gdkinput-win32.c : gdk_device_get_history moved to
	gdk/gdkinput.c like the other backends

	* gdk/win32/gdkinput-win32.h :
	* gdk/win32/gdkinput.c :
	* gdk/win32/gdkvisual-win32.c :
	* gdk/win32/gdkwin32.h : mechanical adaption to GdkDevice and
	GdkVisual GObjectification. UNTESTED for pen-devices because
	I simply have none.

	* gdk/gdk.def :
	* gtk/gtk.def : updated externals

	* gtk/gtkiconfactory.c :
	* gtk/gtkoldeditable.c : GError *error needs to be initialized (= NULL)
	before passing &error to functions to avoid strange crashes

	* gtk/gtkcontainer.c (gtk_container_real_set_focus_child) : is static

	* gtk/gtkwidget.c (gtk_widget_get_child_visible): use g_return_val_if_fail

	* gtk/makefile.msc.in : updated