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This structure receives the device-specific data for a Unimodem during a call to the lineGetDevCaps function.
typedef struct UNIMODEM_INFO_tag {WORDwDeviceType;WORDwActive;DWORDdwPPPMTU;} UNIMODEM_INFO, * PUNIMODEM_INFO;
Members
- 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.
Remarks
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.
Requirements
OS Versions: Windows CE .NET 4.0 and later.
Header: Unimodem.h.
See Also
lineGetDevCaps | UNIMDM_CHG_DEVCFG
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