UNIMODEM_INFO

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This structure receives the device-specific data for a Unimodem during a call to the lineGetDevCaps function.


typedef struct UNIMODEM_INFO_tag {
  WORD wDeviceType; 
  WORD wActive; 
  DWORD dwPPPMTU; 
} UNIMODEM_INFO, * PUNIMODEM_INFO; 

wDeviceType

Value that indicates the type of device on the port. The following table shows possible values for dwOption.

Value Description

DT_NULL_MODEM

No modem

DT_EXTERNAL_MODEM

An external modem

DT_INTERNAL_MODEM

An internal modem

DT_PCMCIA_MODEM

A PCMCIA modem

DT_PARALLEL_PORT

A parallel port

DT_PARALLEL_MODEM

A parallel modem

DT_IRCOMM_MODEM

An IrCOMM modem

wActive

If the port is currently active, this field is 1. Otherwise, this field is 0.

dwPPPMTU

Maximum transfer unit size, in bytes, that PPP will use. The default value is 1500.

Normally, wActive will be 1 for all TAPI devices except PC Cards that have been removed from the system.

To improve efficiency on some media, choose a size smaller than the default for dwPPPMTU.

Headerunimodem.h
Windows Embedded CEWindows CE .NET 4.0 and later
Windows MobileWindows Mobile Version 5.0 and later

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