OBJ_EXCLUSIVE - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _PHNT_NTDEF_H
#ifndef _NTDEF_

/**
 * OBJ_EXCLUSIVE                       0x00000020L
 *
 * Only a single handle can be open for this object.
 */
#define OBJ_EXCLUSIVE                       0x00000020L

#endif
#endif

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NtDoc

This OBJECT_ATTRIBUTES flag indicates that the object/handle should be marked as exclusive. Exclusive handles prevent other callers from opening handles to the object.

Related flags

See also

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