Add NULL argument to XGetIMValues to properly terminate variable argument

Add NULL argument to XGetIMValues to properly terminate variable argument

2000-11-30 Hidetoshi Tajima  <tajima@eng.sun.com>

	* modules/input/gtkimcontextxim.c (setup_im): Add NULL argument to
	XGetIMValues to properly terminate variable argument list, and do
	NULL return check for ic_values and xim_styles.

	* modules/input/gtkimcontextxim.c (gtk_im_context_xim_reset):
	Restore preedit state after XmbResetIC().

	* modules/input/gtkimcontextxim.c (gtk_im_context_xim_get_ic):
	XvaCreateNestedList() should take XvaNestedList, but not
	XvaNestedList*.

	* modules/input/gtkimcontextxim.c (gtk_im_context_xim_reset,
	preedit_draw_callback, preedit_caret_callback): Match
	"preedit-changed" signal name to "preedit_changed" to be
	consistent to the spec.

	* gtk/gtkimcontextsimple.c (check_table):
	Match "preedit-changed" to "preedit_changed" to be consistent
	to the spec.