phoneSetStatusMessages (Compact 2013)

3/26/2014

This function enables an application to monitor the specified phone device for selected status events.

Syntax

LONG WINAPI phoneSetStatusMessages(
  HPHONE hPhone,
  DWORD dwPhoneStates,
  DWORD dwButtonModes,
  DWORD dwButtonStates 
);

Parameters

• hPhone
  Handle to the open phone device to be monitored.

• dwPhoneStates
  These flags specify the set of phone status changes and events for which the application can receive notification messages. This parameter can have zero, one, or more of the PHONESTATE constants.

• dwButtonModes
  Set of phone-button modes for which the application can receive notification messages. This parameter can have zero, one, or more of the PHONEBUTTONMODE constants.

• dwButtonStates
  Set of phone-button state changes for which the application can receive notification messages. If the dwButtonModes parameter is zero, dwButtonStates is ignored. If dwButtonModes has one or more bits set, this parameter must also have at least one bit set. This parameter uses the PHONEBUTTONSTATE constants.

Return Value

Returns zero if the request succeeds or a negative error number if an error occurs. The following table shows the return values for this function.

Value	Description
PHONEERR_INVALPHONEHANDLE	The handle to the open phone device is invalid.
PHONEERR_NOMEM	Not enough memory is available.
PHONEERR_INVALPHONESTATE	The phone state is invalid.
PHONEERR_RESOURCEUNAVAIL	The resources are unavailable.
PHONEERR_INVALBUTTONMODE	The button mode is invalid.
PHONEERR_OPERATIONFAILED	The operation failed.
PHONEERR_INVALBUTTONSTATE	The button state is invalid.
PHONEERR_UNINITIALIZED	A parameter is uninitialized.
PHONEERR_OPERATIONUNAVAIL	The operation is unavailable.

Remarks

An application can use the phoneSetStatusMessages function to enable or disable the generation of the corresponding messages. All phone status messages are disabled by default.

Requirements

Header	tapi.h
Library	TAPI32.dll

See Also

Reference

TAPI Phone Device Functions
phoneGetDevCaps
phoneInitializeEx
phoneOpen