The following code works fine for me with TeeChart Java SWT in Eclipse:
Bar bar1 = new Bar(tChart1.getChart());
bar1.fillSampleValues();
tChart1.addMouseWheelListener(new MouseWheelListener() {
@Override
public void mouseScrolled(MouseEvent arg0) {
Axis tmpA = tChart1.getAxes().getLeft();
double tmpInc = tmpA.getRange()/10;
if (arg0.count>0)
tmpA.setMinMax(tmpA.getMinimum()+tmpInc, tmpA.getMaximum()+tmpInc);
else
tmpA.setMinMax(tmpA.getMinimum()-tmpInc, tmpA.getMaximum()-tmpInc);
}
});