progressionbar - Draw a progression bar
progressionbar(mes) create a new progression bar, return window identificator.
progressionbar(winId[,mes]) update the progression bar identificated as winId.
winId=progressionbar('Do something');
realtimeinit(0.3);
for j=0:0.1:1,
realtime(3*j);
progressionbar(winId);
end
winclose(winId);
Jaime Urzua