Print debugging output only if asked for, not always.

Print debugging output only if asked for, not always.

2005-03-16  Tor Lillqvist  <tml@novell.com>

	* gdk/win32/gdkdisplay-win32.c (_win32_on_clipboard_change): Print
	debugging output only if asked for, not always.

	* gdk/win32/*.c: Use the %+d%+d format for coordinate pairs in
	debugging printout instead of +%d+%d. Misc other additions and
	cosmetic improvements to debugging printouts. Use API_CALL() and
	GDI_CALL() macros in more places.

	* gdk/win32/gdkwindow-win32.c (gdk_window_move, gdk_window_resize,
	gdk_window_move_resize): To detect child windows, check whether
	the real parent is not the desktop window, instead of relying on
	the GDK window type being GDK_WINDOW_CHILD. Foreign GtkPlug
	windows have a GDK window type GDK_WINDOW_FOREIGN, but are still
	de facto child windows.