ASYNCCONNECTCLASS - NtDoc

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

typedef enum _ASYNCCONNECTCLASS
{
    Connect_CTS,
    Connect_DSR,
    Connect_RI,
    Connect_DCD,
    Connect_FirstChar,
    Connect_Perm,
} ASYNCCONNECTCLASS;

#endif

View code on GitHub

This type is documented in the [MS-TSTS] specification.