关于VC++.NET的EXE程序(windows程序)如何调用FindWindow和SetWindowText

关于VC++.NET的EXE程序(windows程序)怎么调用FindWindow和SetWindowText
函数的原型应该写在哪里啊?是这样吗?

C/C++ code

    private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e)              {                 HWND FindWindow(          LPCTSTR lpClassName,                     LPCTSTR lpWindowName                     );                 BOOL SetWindowText(          HWND hWnd,                     LPCTSTR lpString                     );             }