<FONT COLOR=red><A NAME="ref_116_7">R</A></FONT> : <A HREF="terminal_interface-curses-mouse__ads.htm#ref_64_9">Event_Mask</A>;
<FONT COLOR=red><A NAME="ref_117_7">Old</A></FONT> : <b>aliased</b> <A HREF="terminal_interface-curses-mouse__ads.htm#ref_64_9">Event_Mask</A>;
<b>begin</b>
<A HREF="terminal_interface-curses-mouse__adb.htm#ref_116_7">R</A> := <A HREF="terminal_interface-curses-mouse__adb.htm#ref_113_16">MMask</A> (<A HREF="terminal_interface-curses-mouse__ads.htm#ref_123_26">Mask</A>, <A HREF="terminal_interface-curses-mouse__adb.htm#ref_117_7">Old</A>'<b>Access</b>);
<b>if</b> <A HREF="terminal_interface-curses-mouse__adb.htm#ref_116_7">R</A> = <A HREF="terminal_interface-curses-mouse__ads.htm#ref_65_4">No_Events</A> <b>then</b>
<FONT COLOR=red><A NAME="ref_116_7">R</A></FONT> : <A HREF="terminal_interface-curses-mouse__ads.htm#ref_64_9">Event_Mask</A>;
<FONT COLOR=red><A NAME="ref_117_7">Old</A></FONT> : <b>aliased</b> <A HREF="terminal_interface-curses-mouse__ads.htm#ref_64_9">Event_Mask</A>;
<b>begin</b>
<A HREF="terminal_interface-curses-mouse__adb.htm#ref_116_7">R</A> := <A HREF="terminal_interface-curses-mouse__adb.htm#ref_113_16">MMask</A> (<A HREF="terminal_interface-curses-mouse__ads.htm#ref_123_26">Mask</A>, <A HREF="terminal_interface-curses-mouse__adb.htm#ref_117_7">Old</A>'<b>Access</b>);
<b>if</b> <A HREF="terminal_interface-curses-mouse__adb.htm#ref_116_7">R</A> = <A HREF="terminal_interface-curses-mouse__ads.htm#ref_65_4">No_Events</A> <b>then</b>