VHLockMem - Parameters

 pAddress (PVOID) - input 
    Address within the first page of code or data. 
 

 ulLength (ULONG) - input 
    Size of code or data segment. 
 

 fData (BOOL) - input 
    FALSE indicates code segment; TRUE indicates data segment. 
 

 rc (ULONG) - returns 
    Return value. 

    Non-zero lockhandle indicates success; zero indicates error.