UNIMODEM_INFO (Windows Embedded CE 6.0)
1/6/2010
This structure receives the device-specific data for a Unimodem during a call to the lineGetDevCaps function.
Syntax
typedef struct UNIMODEM_INFO_tag {
WORD wDeviceType;
WORD wActive;
DWORD dwPPPMTU;
} 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
| Header | unimodem.h |
| Windows Embedded CE | Windows CE .NET 4.0 and later |