APTTYPE enumeration (objidl.h)

Specifies different types of apartments.

Syntax

typedef enum _APTTYPE {
  APTTYPE_CURRENT = -1,
  APTTYPE_STA = 0,
  APTTYPE_MTA = 1,
  APTTYPE_NA = 2,
  APTTYPE_MAINSTA = 3
} APTTYPE;

Constants

APTTYPE_CURRENT Value: -1 The current thread.
APTTYPE_STA Value: 0 A single-threaded apartment.
APTTYPE_MTA Value: 1 A multithreaded apartment.
APTTYPE_NA Value: 2 A neutral apartment.
APTTYPE_MAINSTA Value: 3 The main single-threaded apartment.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps | UWP apps]
Minimum supported server	Windows 2000 Server [desktop apps | UWP apps]
Header	objidl.h (include Objidl.h)

See also

CoGetApartmentType

IComThreadingInfo::GetCurrentApartmentType