phoneGetButtonInfo

The phoneGetButtonInfo function returns information about the specified button.

LONG phoneGetButtonInfo(
  HPHONE hPhone,                  
  DWORD dwButtonLampID,           
  LPPHONEBUTTONINFO lpButtonInfo  
);
 

Parameters

hPhone

A handle to the open phone device.

dwButtonLampID

A button on the phone device.

lpButtonInfo

A pointer to a variably sized structure of type PHONEBUTTONINFO. This data structure describes the mode and the function, and provides additional descriptive text corresponding to the button.

Return Values

Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are:

PHONEERR_INVALPHONEHANDLE, PHONEERR_NOMEM, PHONEERR_INVALBUTTONLAMPID, PHONEERR_RESOURCEUNAVAIL, PHONEERR_INVALPOINTER, PHONEERR_OPERATIONFAILED, PHONEERR_INVALPHONESTATE, PHONEERR_STRUCTURETOOSMALL, PHONEERR_OPERATIONUNAVAIL, PHONEERR_UNINITIALIZED.

QuickInfo

  Version: Use TAPI version 1.4 and later.
  Header: Declared in tapi.h.
  Import Library: Link with tapi32.lib.

See Also

TAPI Reference Overview, Supplementary Phone Services Functions, PHONEBUTTONINFO