FindWindow Weird Error

[JasonLpz]

Hi im getting a error:

error C2440: '=' : cannot convert from 'class CWnd *' to 'struct HWND__ *'
        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe. 

My Code is:

    HWND i;
    HWND x;
    
    i = FindWindow("Program",0);