Retrieves the current datum values present on specified switch block inputs.

DWORD swiSampleInput ( SWIHD swihd,
SWI_TERMINUS input[],
BYTE data[],
unsigned count)

swihd Handle returned by swiOpenSwitch.

input Array of terminus structures for the input of the switch block. The terminus structure is:

typedef struct
{
DWORD bus;
DWORD stream;
DWORD timeslot;
} SWI_TERMINUS;

See swiMakeConnection for a description of these fields.

data Array that receives values present on the specified switch block inputs.

count Number of elements in the input and data arrays.

• SUCCESS
• CTAERR_DRIVER_ERROR
  The underlying driver retrieved an unrecognized error. Call swiGetLastError to retrieve the MVIP device error code.
• CTAERR_INVALID_HANDLE
  swihd is not a valid switch handle.
• SWIERR_INVALID_STREAM
  One or more of the streams specified is invalid.
• SWIERR_INVALID_TIMESLOT
  One or more of the timeslots specified is invalid.

• None.

This function reads the data available on one or more inputs of a switch block. Calling this function does not affect the switch block inputs or connections.

In MVIP-90 mode, the bus field is ignored and the stream and timeslot fields are interpreted as MVIP-90 streams and timeslots.

Refer to Section 4.5, Sampling Data for more information.

If CTAERR_DRIVER_ERROR is returned, call swiGetLastError to retrieve the MVIP device error code.

swiGetLastError, swiGetOutputState, swiMakeConnection, swiMakeFramedConnection, swiOpenSwitch, swiSendPattern

void myPrintInput(SWIHD hd, SWI_TERMINUS input)
{
    BYTE data;

    swiSampleInput(hd, &input, &data, 1);

    switch (input.bus)
    {
    case MVIP95_MVIP_BUS:
        printf(" %s", " mvip");
        break;
    case MVIP95_LOCAL_BUS:
        printf(" %s", "local");
        break;
    case MVIP95_MC1_BUS:
        printf(" %s", "  mc1");
        break;
    }

    printf(":%2d:%02d=%02X\n", input.stream, input.timeslot, data);
}