Constructs a CXlControl object, without displaying it
CXlControl( UINT id, USHORT nType, const char* pszText, USHORT x, USHORT y, USHORT cx, USHORT cy );
Numeric identifier of the control, which can be used to refer to it in event handlers. The ID does not need to be unique.
Control text, if any.
Coordinate of left side of control. Ignored if 0.
Coordinate of top of control. Ignored if 0.
Width of control. Ignored if 0.
Height of control. Ignored if 0.
The constructor is protected. Only classes descended from CXlControl may be instantiated.