windows-server-2003/shell/osshell/regwiz/include/devcfg.h

// Terminal mode setting
//
#define TERMINAL_NONE   0x00000000
#define TERMINAL_PRE    0x00000001
#define TERMINAL_POST   0x00000002
#define MANUAL_DIAL     0x00000004

#pragma pack( push,4)

// Device Setting Information
//
typedef struct  tagDEVCFGGDR  {
    DWORD       dwSize;
    DWORD       dwVersion;
    DWORD       fTerminalMode;
}   DEVCFGHDR;

typedef struct  tagDEVCFG  {
    DEVCFGHDR   dfgHdr;
    COMMCONFIG  commconfig;
}   DEVCFG, *PDEVCFG, FAR* LPDEVCFG;

#pragma pack(pop)