addRadioButtonList method
Implementation
int addRadioButtonList(int dwIDCtl) => (ptr.ref.vtable + 7)
.cast<Pointer<NativeFunction<Int32 Function(Pointer, Uint32 dwIDCtl)>>>()
.value
.asFunction<
int Function(Pointer, int dwIDCtl)>()(ptr.ref.lpVtbl, dwIDCtl);