A convenience function that returns tab values
#include <Xm/Xm.h> float XmTabGetValues XmTab tabunsigned char *unitsXmOffsetModel *offsetunsigned char *alignmentchar **decimal
XmTabGetValues takes an XmTab structure, returns the floating point number that is set as the value of the tab, and then sets values for the units, offset, alignment, and decimal arguments where they are not NULL. The returned floating point number represents the distance that the rendering of the XmString segment associated with tab will be offset. The offset is from either the beginning of the rendering or from the previous tab stop, depending on the setting for the offset model. The distance will use the unit type pointed at by unit.
Returns a floating point number that is set as the value of the tab.