Undocumented functions of NTDLL

2OOO, 24 November

typedef struct _MUTANT_BASIC_INFORMATION {


  LONG                    CurrentCount;
  BOOLEAN                 OwnedByCaller;
  BOOLEAN                 AbandonedState;



} MUTANT_BASIC_INFORMATION, *PMUTANT_BASIC_INFORMATION;

Use MUTANT_BASIC_INFORMATION as a buffer in NtQueryMutant call.



CurrentCount
If CurrentCount is less than zero, mutant is signaled.

OwnedByCaller
It's TRUE if mutant is signaled by caller's thread.

AbandonedState
Is set when thread terminates without call NtReleaseMutant.