- The feature macro <STRONG>NCURSES_MOUSE_VERSION</STRONG> is provided so the preprocessor
- can be used to test whether these features are present. If the
- interface is changed, the value of <STRONG>NCURSES_MOUSE_VERSION</STRONG> will be
- incremented. These values for <STRONG>NCURSES_MOUSE_VERSION</STRONG> may be specified
- when configuring <EM>ncurses</EM>:
-
- 1 has definitions for reserved events. The mask uses 28 bits.
-
- 2 adds definitions for button 5, removes the definitions for
- reserved events. The mask uses 29 bits.
-
- The order of the <STRONG>MEVENT</STRONG> structure members is not guaranteed.