write_DXF_polyline_end  LTCustomizer21 for AutoCAD LT reference manual

ActiveX
    Function write_DXF_polyline_end() As Boolean
C/C++
    int WINAPI LTC_write_DXF_polyline_end();

return value
ActiveX: True: success .False: failure
C/C++: 1: success .0: failure

This function notifies end of writing polyline to LTCustomizer21.
You have to execute write_DXF_polyline() and write_DXF_polyline_vertex() before you execute this function

reference
write_DXF_polyline()
write_DXF_polyline_vertex()