| QSysKey | Function (ROM Call 0x183)

system.h

short QSysKey (short code);

Checks whether argument is code of a system key.

QSysKey returns TRUE if code is code of a system key, else returns FALSE. It assumes that code is code as the function ngetchx for reading the keyboard returns. System keys are keys which opens menus, which may have as the result inserting characters or tokens in the editor. The following keys are system keys on the TI-89: MATH, CATALOG, CHAR and CUSTOM (codes 4149, 278, 4139 and 4373).

Uses: WordInList
Used by: ROM Call 0x3EA