NAME

qtest - checks the contents of the event queue

SPECIFICATION

C
long qtest()

FORTRAN
integer*4 function qtest()

Pascal
function qtest: longint;

DESCRIPTION

qtest returns zero if the queue is empty.  Otherwise, the device number of the first entry is returned, and the queue remains unchanged. 

SEE ALSO

qenter, qread, qreset

NOTE

This command can be used only in immediate mode. 

Version 2.4  —  May 08, 1986