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 (0) if the queue is empty.  Otherwise, it returns the device number of the first entry.  The queue remains unchanged. 

SEE ALSO

qenter, qread, qreset IRIS Graphics Programming, Section 7.3, The Event Queue

NOTE

This routine is available only in immediate mode. 

Version 2.5  —  April 22, 1987