Sets the default pattern for a connection.
DWORD ppxSetDefaultPattern ( PPXHD ppxhd, BYTE pattern )
|
Argument |
Description |
|
ppxhd |
Handle returned by ppxCreateConnection or by ppxOpenConnection. |
|
pattern |
Default pattern (for example, 0x7F for mu-law or 0xD5 for A-law). |
|
Return value |
Description |
|
SUCCESS |
|
|
CTAERR_DRIVER_ERROR |
Underlying driver retrieved an unrecognized error. Call swiGetLastError to retrieve the MVIP device error code. |
|
CTAERR_INVALID_HANDLE |
ppxhd is not a valid connection handle. |
|
CTAERR_OUT_OF_MEMORY |
Unable to allocate memory. |
|
CTAERR_SVR_COMM |
Natural Access server communication error. |
|
PPXERR_COMM_FAILURE |
Problems were encountered when communicating with the PPX server. |
|
PPXERR_DRIVER_OPEN_FAILED |
Driver open failed, or the driver DLL or device was not found. |
|
SWIERR_INVALID_STREAM |
One or more of the specified streams is invalid. |
|
SWIERR_INVALID_TIMESLOT |
One or more of the specified timeslots is invalid. |
ppxSetDefaultPattern sets the default pattern (8-bit fixed pattern) for a connection. If listeners are attached to the connection but no talkers, the default pattern is sent to the listeners. If listeners are connected to a connection and the talker is removed, the default pattern is sent to the listeners.
Refer to Setting the silence pattern for a connection for more information.