GT_ALT() Find the real value of an ALT key combination
GT_CAPLOCK() Return Caps Lock status and optionally set new status
GT_CHECKKEY() Check Key for Upper/Lower case, Control or Alt Letter
GT_INKEY() Modified inkey() that calls setkey procedures
GT_ISALT() Checks Alt Key
GT_ISCTRL() Checks Control key
GT_ISSHIFT() Checks Shift keys
GT_ISSYSRQ() Checks SYSRQ key
GT_NUMLOCK() Return Number Lock status and optionally set new status
GT_STUFFKEY() Stuff a key press into the keyboard buffer.