Total size allocated to this data structure, in bytes.
Size for this data structure that is needed to hold all the returned information, in bytes.
Size of the portion of this data structure that contains useful information, in bytes.
Number of handles in the hCalls array.
Size of the array of call handles, in bytes.
Offset from the beginning of the structure to the variably sized array of HCALL handles. The size of the array is specified by the dwCallsSize member.