# OEReceptorGetBoundLigand¶

OEChem::OEMolBase& OEReceptorGetBoundLigand(const OEChem::OEMolBase& receptor)


Returns a copy of the receptor’s bound ligand.

If the receptor does not have a bound ligand then an empty molecule will be returned

It is only valid to call this function if receptor is a valid receptor (i.e., OEIsReceptor returns true).