RetVal% = BCX_ELLIPSE(hWnd, _
                       Left%, _
                        Top%, _
                      Right%, _
                     Bottom%  _
                     [, Pen]  _
                     [,Fill]  _
                 [, DrawHDC])

 Parameters:

• hWnd Identifies the window where drawing takes place.
• Left X-coordinate of the upper-left corner of a bounding rectangle.
• Top Y-coordinate of the upper-left corner of a bounding rectangle.
• Right X-coordinate of the lower-right corner of a bounding rectangle.
• Bottom Y-coordinate of the lower-right corner of a bounding rectangle.
• Pen [OPTIONAL] integer representing the RGB color code. The default is 0 which is a black pen.
• Fill [OPTIONAL] integer 0 or 1. The default is zero which will not fill the ellipse. A value of 1 will fill the ellipse with the color defined in the Pen parameter.
• DrawHDC [OPTIONAL] HDC(Handle to Device Context) pointing to an already open HDC. This is useful if a device context is to be written to many times. In this case the programmer is responsible for closing the HDC at the appropriate time

 Return Value:

• RetVal% is a nonzero integer if the function succeeds, zero if the function fails.