propkeydef.h header
This header is used by The Windows Shell. For more information, see:
propkeydef.h contains the following programming interfaces:
DEFINE_PROPERTYKEY Used to pack a format identifier (FMTID) and property identifier (PID) into a PROPERTYKEY structure that represents a property key. |
IsEqualPropertyKey Compares the members of two PROPERTYKEY structures and returns whether they are equal. |