Inquire about the current system
gestalt uses the Macintosh function "Gestalt" to return information about the current hardware and software. For a list of Gestalt selectors and responses consult Apple developer documentation. On Windows, this function is emulated, and may consequently report slightly different, though meaningful, information.
|| A gestalt to repeat its previous output.
message causes |
|| Performs the same function as
message containing a Gestalt selector will return the appropriate system specific information. Some sample selectors are "sysv" to return the system version and "qtim" to return the quicktime version. |
gestalt can give you info about the system in use and info about hardware features
Output the monitor size