APTTYPEQUALIFIER_NA_ON_IMPLICIT_MTA constant
int
const APTTYPEQUALIFIER_NA_ON_IMPLICIT_MTA
This qualifier is only valid when the pAptType parameter of the CoGetApartmentType function contains APTTYPE_NA on return. When an implicit MTA thread creates or invokes a COM in-process object using the "Neutral" threading model, the COM apartment type of the thread switches from the implicit MTA type to a Neutral apartment type. This qualifier informs the API caller that the thread has switched from the implicit MTA apartment type to the NA type.
Implementation
static const APTTYPEQUALIFIER_NA_ON_IMPLICIT_MTA = 4;