Undocumented functions of NTDLL

2OOO, 24 November

NTSYSAPI 
NTSTATUS
NTAPI
NtQueryMutant(

  IN HANDLE               MutantHandle,
  IN MUTANT_INFORMATION_CLASS MutantInformationClass,
  OUT PVOID               MutantInformation,
  IN ULONG                MutantInformationLength,
  OUT PULONG              ResultLength OPTIONAL );

MutantHandle
Handle to Mutant object.

MutantInformationClass
Is defined as enum:
	
	typedef enum _MUTANT_INFORMATION_CLASS
	{
		MutantBasicInformation

	} MUTANT_INFORMATION_CLASS, *PMUTANT_INFORMATION_CLASS;

MutantInformation
Buffer for result. As long as only one information type is defined, set MutantInformation as a pointer to MUTANT_BASIC_INFORMATION structure.

MutantInformationLength
Size of buffer.

ResultLength
Number of bytes written to buffer.