note description: "Memory device context compatible with a given device context." legal: "See notice at end of class." status: "See notice at end of class." date: "$Date$" revision: "$Revision$" class WEL_COMPATIBLE_DC obsolete "use WEL_MEMORY_DC" inherit WEL_DC redefine destroy_item end create make feature {NONE} -- Initialization make (a_dc: WEL_DC) -- Make a compatible dc with `a_dc' require a_dc_not: a_dc /= Void a_dc_exists: a_dc.exists do item := cwin_create_compatible_dc (a_dc.item) ensure exists: exists end feature -- Basic operations get -- Get the device context do end release -- Release the device context do end feature {NONE} -- Removal destroy_item do unselect_all delete end feature {NONE} -- Externals cwin_create_compatible_dc (hdc: POINTER): POINTER -- SDK CreateCompatibleDC external "C [macro ] (HDC): EIF_POINTER" alias "CreateCompatibleDC" end note copyright: "Copyright (c) 1984-2018, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end