.. _exhale_define__ifc4x1-definitions_8h_1a4dfa9e1e2a01c7712c377020ff8189b1: Define SCHEMA_IfcWindowLiningProperties_MullionThickness_IS_OPTIONAL ==================================================================== - Defined in :ref:`file_src_ifcparse_Ifc4x1-definitions.h` Define Documentation -------------------- .. doxygendefine:: SCHEMA_IfcWindowLiningProperties_MullionThickness_IS_OPTIONAL