convert win32 project with cocos2dx to ios project.

I have developed one win32 project with cocos2dx. now I need the ios project by using this win32 project.
but I have a problem. in win32 project, I have used the OPENFILENAME and HWND in window.h.
After migrate the project into ios, when I compile this project, the xcode5.0 needs window.h.
How could I solve this problem?
Am I only able to use the cocos2dx functions and libraries, not native things?
thanks for everyone reply.