Error: cannot be called in the c++ argument list

Question

I have been trying to use bunifu Transition in windows form c++, but without secession because of the error. In c# it would be "bunifutransition.showsync(dashboard);" but in c++ neither a c# to c++ converter solves.

C#

Private: System::Void bunifuImenu_Click(System::Object^ sender, System::EventArgs^ e){
     bunifutransition.HideSync(panel3);
     bunifutransition.ShowSync(panel4);
}

C++ ERROR

Private: System::Void bunifuImenu_Click(System::Object^ sender, System::EventArgs^ e){
     bunifutransition->HideSync(panel3);
     bunifutransition->ShowSync(panel4);
}