LPCTSTR lpClassName | pointer to registered class name. |
LPCTSTR lpWindowName | pointer to window name. |
DWORD dwStyle | window style. |
int x | horizontal position of window |
int y | vertical position of window |
int nWidth | window width |
int nHeight | window height |
HWND hWndParent | handle to parent or owner window |
HMENU hMenu | handle to menu or child-window identifier |
HANDLE hInstance | handle to application instance |
LPVOID lpParam | pointer to window-creation data |
HWND CreateWindow ( LPCTSTR lpClassName, LPCTSTR lpWindowName, DWORD dwStyle, int x, int y, int nWidth, int nHeight, HWND hWndParent, HMENU hMenu, HANDLE hInstance, LPVOID lpParam );
You should read the CreateWindow entry in - Microsoft® Win32® Programmer's Reference - for more detail.