underclared indentifier "WS_TABSTOP"

This is the Pickdate program I downloaded from John Findley page. My
lccwin version is probably a year old. Don't have internet connection
now , So I have to rely on the library for now.
The offending error appears in the Button function as follows

HWND Button(char*Text.HWND hWnd, int id, int X, int Y, int W, int H)
{
HWND A;
A=CreatWindowEx(WS_Ex_STATEICEDGE,"button",Text,
WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON|WS_TABSTOP, // the error
X*BCX_ScaleX,Y*BCX_ScaleY.W*BCX_ScaleX,H*BCX_ScaleY,
hWnd,(HMENU)id.BCX_hInstance.NULL);
SendMessage(A.(UINT)WM_SETFONT,(WPARAM)GetStockObject(DEFAULT_GUI_
Return a;
}

error undeclared indentifier "WS_TABSTOP"
I can't find any WS_CHILD OR WS_VISIBLE OR BS_PUSHBUTTON OR WS_TABSTOP
documentation using f1 on CreateWindowEX

Is this a WIN.h problem ?

.