Fixed wrong parameter type.

win32.mod/user32.bmx

@@ -1172,7 +1172,7 @@ Function GetClientRect( hWnd:Byte Ptr,lpRect:Int Ptr )
 Function GetWindowRect( hWnd:Byte Ptr,lpRect:Int Ptr )
 Function GetDesktopWindow:Byte Ptr()
 Function AdjustWindowRect( rect:Int Ptr,style,menu )
-Function AdjustWindowRectEx( rect:Int Ptr,style,menu:Byte Ptr,exstyle )
+Function AdjustWindowRectEx( rect:Int Ptr,style,menu:Int,exstyle )
 Function ClientToScreen( hWnd:Byte Ptr,point:Byte Ptr )
 Function ShowWindow( hWnd:Byte Ptr,nCmdShow )
 Function SetMenu( hWnd:Byte Ptr,hmenu:Byte Ptr )