Declaration: TMetaData.ObtainGroupSpectralLimits (Group: integer; var RangeLow, RangeHigh: double): integer;
Retrieves the range of the spectrum assigned to the spectral group Group. The spectral range spanned by the specified group is returned in the variable parameters RangeLow and RangeHigh. The function returns TRUE if the specified group is valid, otherwise a FALSE value is returned. If the returned value is FALSE the variable parameters RangeLow and RangeHigh are undefined.

Hint 1: Please note that ObtainGroupSpectralLimits detects only the first range of spectra of a group. If a particular group is fragmented the other parts of the group are not detected (however, fragmented groups cannot occur under regular circumstances).

Hint 2: In order to directly access the metadata of the currently loaded dataset you can use the pre-declared global variable MData.