I tried to use the command SetAxisScalingMode in order to allow the user to see the histogram +0.1 after the maximum, and -0.1 below minimum:
SetAxisScalingMode (graphTabPanelHandle, TABPANEL_3_CCH, VAL_BOTTOM_XAXIS, VAL_MANUAL, -range-0.1, range+0.1);
However, instead of getting 0.0, I've got weird values like -5.6E-17 instead (please see the attached picture)
How can prevent that and solve this problem by always show more clear values with 0.1 intervals?