The TSPI_providerInstall function is obsolete. TAPI version 1.4 or earlier service providers can implement this TSPI function. TAPI version 2.0 or later TSPs implement TUISPI_providerInstall.
The TSPI_providerInstall function installs any additional "pieces" of the provider into the right directories (or at least verifying that they're there), sets up the provider's registry entries for its lines and phones, and creates any other entries necessary for the service provider. It is called from the Telephony Control Panel utility (supplied with Windows Telephony in versions 1.4 and earlier) when the Add button is pressed.
LONG TSPI_providerInstall(
HWND hwndOwner,
DWORD dwPermanentProviderID
);
Returns zero if the function succeeds or an error number if an error occurs. Possible return values are as follows:
LINEERR_OPERATIONFAILED, LINEERR_INIFILECORRUPT, LINEERR_NOMEM. LINEERR_INVALPARAM.
This function completes the installation of other pieces required by the service provider after its entries in the [Providers] section in the registry have been made. If the service provider requires any additional privately-defined entries in the registry for proper operation, they must also be installed. A typical way to install this section with its entries is to call TSPI_providerConfig.
This function must leave the system in a consistent state. It should run to completion, not allowing the user to abort the installation when it is partly completed. If installation fails, it is the provider's responsibility to "back out" what was done and return an error. This may imply pre-scanning to verify that a complete installation is possible, before the installation begins.
This function is called only once, during installation of the service provider, until there is a call to TSPI_providerRemove. It must be called before any other TSPI-defined function.
The Telephony Control Panel utility supplied with Windows Telephony in versions 1.4 and earlier calls this function (with external sequence requirements met as described here) when the "add" command is invoked. It does not call TSPI_providerConfig for the "add" command.
There is no corresponding function at the TAPI level. At that level, applications expect to have service providers already installed. Running applications are informed about dynamic reconfiguration through the LINEDEVSTATE_REINIT or PHONESTATE_REINIT value in the LINE_LINEDEVSTATE or PHONE_STATE message.
LINE_LINEDEVSTATE, PHONE_STATE, TSPI_providerConfig, TSPI_providerInit, TSPI_providerRemove, TSPI_providerShutdown