NCURSES_BUTTON_PRESSED
mmask_t pressed = (mmask_t) NCURSES_MOUSE_MASK(b3, NCURSES_BUTTON_PRESSED);
#define BUTTON1_PRESSED NCURSES_MOUSE_MASK(1, NCURSES_BUTTON_PRESSED)
#define BUTTON2_PRESSED NCURSES_MOUSE_MASK(2, NCURSES_BUTTON_PRESSED)
#define BUTTON3_PRESSED NCURSES_MOUSE_MASK(3, NCURSES_BUTTON_PRESSED)
#define BUTTON4_PRESSED NCURSES_MOUSE_MASK(4, NCURSES_BUTTON_PRESSED)
#define BUTTON5_PRESSED NCURSES_MOUSE_MASK(5, NCURSES_BUTTON_PRESSED)