hlib (PHLIB) - in/out
This is the same as the library handle in the hlibLibhandle parameter of the WinLoadProcedure function or the hlibLibhandle parameter of the WinDeleteLibrary function.
If the idContext parameter is set to LHK_LOADLIB, then this hook must set the value of this parameter to the handle of the loaded library or to NULLHANDLE if the load fails.