2.9.328 Tplc
The Tplc structure is a 32-bit unsigned integer that specifies the format of one level of a bulleted or numbered list.
If the first bit (lowest bit) is 1, Tplc specifies an application built-in format, as specified in TplcBuildIn. If the first bit is 0, Tplc specifies a user-defined format, as specified in TplcUser. See SttbRgtplc for more details about how Tplcs are mapped to LVLs inside LSTF.