TAdvStringGrid Get Radio Button State c++

[van_der_Ploeg_Anne1 (van der Ploeg Anne)]

In c++:
What is the methods' name and definition to get the state of a radio button in a TAdvStringGrid in which Grid->AddRadioColumn(columnnumber) is used?

[brunofierens]

grid->GetRadioButtonColumnIndex(ColumnIndex): integer;

is for this purpose