TSPI_phoneSetData function (tspi.h)
The TSPI_phoneSetData function downloads the information in the specified buffer to the opened phone device at the selected data identifier.
Syntax
LONG TSPIAPI TSPI_phoneSetData(
DRV_REQUESTID dwRequestID,
HDRVPHONE hdPhone,
DWORD dwDataID,
LPVOID const lpData,
DWORD dwSize
);
Parameters
dwRequestID
The identifier of the asynchronous request.
hdPhone
The handle to the phone into which data is to be downloaded.
dwDataID
Specifies where in the phone device the buffer is to be downloaded.
lpData
A pointer to the memory location where the data is to be downloaded from.
dwSize
The size of the buffer in bytes. If the lpData parameter is a pointer to a string, the size must include the null terminator.
Return value
Returns dwRequestID, or an error number if an error occurs. The lResult actual parameter of the corresponding ASYNC_COMPLETION is zero if the function succeeds or it is an error number if an error occurs. Possible return values are as follows:
PHONEERR_INVALPHONEHANDLE, PHONEERR_RESOURCEUNAVAIL, PHONEERR_INVALDATAID, PHONEERR_OPERATIONFAILED, PHONEERR_INVALPHONESTATE, PHONEERR_OPERATIONUNAVAIL, PHONEERR_NOMEM.
Remarks
The function downloads a maximum of dwSize bytes from lpData to the phone device. The format of the data, its meaning to the phone device, and the meaning of the data identifier are service-provider specific. The data in the buffer or the selection of a data identifier can act as commands to the phone device.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | tspi.h |