(IT_set_face): Rewritten for the new redisplay engine.
Use default frame colors if the face doesn't specify them; invert the colors if highlight is ON. (IT_write_glyphs): Rewritten for the new redisplay engine. (IT_change_line_highlight): Add (unused) parameter Y, since that's how the hook is called by term.c. (IT_copy_glyphs): New function, copies an area of the display in video RAM. (IT_insert_glyphs): Rewritten to DTRT instead of aborting, since redisplay now calls it even if char_ins_del_ok is zero. (IT_set_frame_parameters): Prototype changed. Calls the new load_color. Puts the new fore/background colors into the default face on current frame. (IT_menu_display): Rewritten to handle the new struct glyph instead of a char array. (XMenuActivate): Call lookup_derived_face to create and use special faces for the pop-up and drop-down menus.
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