NAME

tie − ties two valuators to a button

SPECIFICATION

C
tie(b, v1, v2)
Device b, v1, v2;

FORTRAN
subroutine tie(b, v1, v2)
integer*4 b, v1, v2

Pascal
procedure tie(b, v1, v2: Device);

DESCRIPTION

tie requires a button b and two valuators v1 and v2.  When a queued button changes state, three entries are made in the queue:  one records the current state of the button and two record the current positions of each valuator.  You can tie one valuator to a button by making v2 = 0.  You can untie a button by making both v1 and v2= 0.  v1 appears before v2 in the event queue; b precedes both v1 and v2. 

SEE ALSO

getbutton Programming Guide, Section 7.4, The Event Queue

NOTE

This routine is available only in immediate mode. 

Version 3.6  —  December 20, 1987