CreateWindowA

function CreateWindowA(

  lpClassName: LPCSTR;

  lpWindowName: LPCSTR;

  dwStyle: DWORD;

  x: Integer;

  y: Integer;

  nWidth: Integer;

  nHeight: Integer;

  hWndParent: HWND;

  hMenu: HMENU;

  hInstance: HINST;

  lpParam: LPVOID

):HWND;