added gdkdisplay and gdkscreen

added gdkdisplay and gdkscreen

2002-06-10  Hans Breuer  <hans@breuer.org>

	* gdk/makefile.msc : added gdkdisplay and gdkscreen

	* gdk/win32/gdkdisplay-win32.c (gdk_open_display) :
	need to gdk_screen_set_default_colormap(). Also un-static
	some exported gdk_display_*() functions

	* gdk/win32/gdkdrawable-win32.c : added "gdkscreen.h"

	* gdk/win32/gdkscreen-win32.c : implement
	gdk_screen_get_number, fixed typo, added rewuired headers

	[merge from 2.0.x branch, should we really manifest
	 GtkPlug as being an X11 only thing this way? See #58541]
	* gtk/gtkwindow.c (gtk_window_show): Conditionalize
	GTK_IS_PLUG() check on GDK_WINDOWING_X11. (Problem
	reported by Sven Neumann)