Usage
[par,...] = blockpanelget(p,spar,...)
Description
par = blockpanelget(p,'spar') gets a current value of the parameter
'spar' from the GUI specified in p.
par = blockpanelget(p,'spar1','spar2','spar3') gets current values
of the parameters 'spar1', 'spar2' and 'spar3' from the GUI and
stores them in a vector p.
[par1,par2,par3] = blockpanelget(p,'spar1','spar2','spar3') gets
current values of the parameters 'spar1', 'spar2' and 'spar3'
from the GUI and stores them in the separate variables par1,`par2`
and par3.