.. _exhale_define__ifc4-definitions_8h_1a4dfa9e1e2a01c7712c377020ff8189b1:

Define SCHEMA_IfcWindowLiningProperties_MullionThickness_IS_OPTIONAL
====================================================================

- Defined in :ref:`file_src_ifcparse_Ifc4-definitions.h`


Define Documentation
--------------------


.. doxygendefine:: SCHEMA_IfcWindowLiningProperties_MullionThickness_IS_OPTIONAL