TSPI_phoneSetVolume (Windows Embedded CE 6.0)

1/6/2010

This function sets the volume of the speaker component of the specified hookswitch device to the specified level.

Syntax

LONG TSPIAPI TSPI_phoneSetVolume(
  DRV_REQUESTID dwRequestID,  
  HDRVPHONE hdPhone, 
  DWORD dwHookSwitchDev,  
  DWORD dwVolume 
);

Parameters

• dwRequestID
  Identifier of the asynchronous request.

• hdPhone
  Handle to the phone containing the speaker whose volume is to be set.

• dwHookSwitchDev
  Hookswitch device whose speaker's volume is to be set. This parameter uses one of the PHONEHOOKSWITCHDEV constants.

• dwVolume
  DWORD specifying the new volume level of the hookswitch device. This is a number in the range from 0x00000000 (silence) through 0x0000FFFF (maximum volume). The actual granularity of volume settings in this range are service-provider specific. A value for dwVolume that is out of range is clamped by TAPI to the nearest value in range.

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. The following table shows the return values for this method.

Requirements

See Also

Reference

TSPI Phone Device Functions
TSPI_phoneGetDevCaps