TSPI_phoneSetHookSwitch (Windows CE 5.0)
This function sets the hook state of the specified open phone's hookswitch devices to the specified mode. Only the hookswitch state of the hookswitch devices listed is affected.
LONG TSPIAPI TSPI_phoneSetHookSwitch(DRV_REQUESTIDdwRequestID,HDRVPHONEhdPhone,DWORDdwHookSwitchDevs,DWORDdwHookSwitchMode);
Parameters
- dwRequestID
Identifier of the asynchronous request. - hdPhone
Handle to the phone containing the hookswitch devices whose modes are to be set. - dwHookSwitchDevs
Devices whose hookswitch mode is to be set. This parameter uses one of the PHONEHOOKSWITCHDEV constants. - dwHookSwitchMode
Hookswitch mode to set. This parameter can have only one of the PHONEHOOKSWITCHMODE_ constants.
Return Values
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. The following table shows the return values for this method.
| Value | Description |
|---|---|
| PHONEERR_INVALPHONEHANDLE | The handle to the phone is invalid. |
| PHONEERR_NOMEM | Not enough memory is available. |
| PHONEERR_INVALHOOKSWITCHDEV | The hookswitch device is invalid. |
| PHONEERR_RESOURCEUNAVAIL | The resource is unavailable. |
| PHONEERR_INVALHOOKSWITCHMODE | The hookswitch mode is invalid. |
| PHONEERR_OPERATIONFAILED | The operation failed. |
| PHONEERR_INVALPHONESTATE | The phone state is invalid. |
| PHONEERR_OPERATIONUNAVAIL | The operation is unavailable. |
Remarks
The hookswitch mode is changed to the indicated setting for all devices specified. If different settings are desired, this function can be invoked multiple times with a different set of parameters. A PHONE_STATE message is sent to the application after the hookswitch state has changed.
Requirements
OS Versions: Windows CE 3.0 and later.
Header: Tapicomn.h.
Link Library: Coredll.lib.
See Also
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