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4/8/2010

This function performs a blind or single-step transfer of the specified call to the specified destination address.

Syntax 

LONG WINAPI lineBlindTransfer(
  HCALL 
hCall,
  LPCWSTR 
lpszDestAddress,
  DWORD 
dwCountryCode 
);

Parameters

hCall

Handle to the call to be transferred. The application must be an owner of this call. The call state of hCallmust be connected.

lpszDestAddress

Pointer to a null-terminated string identifying where the call is to be transferred to. The destination address uses the standard dialable number format.

dwCountryCode

Country/region code of the destination. This is used by the implementation to select the call progress protocols for the destination address. If a value of zero is specified, a default call-progress protocol defined by the service provider is used.

Return Value

Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The dwParam2parameter of the corresponding LINE_REPLY message is zero if the function succeeds or it is a negative error number if an error occurs. The following table shows the return values for this function.

Value Description

LINEERR_INVALCALLHANDLE

The handle to the call is invalid.

LINEERR_INVALCOUNTRYCODE

The destination country/region code is invalid.

LINEERR_INVALCALLSTATE

The state of hCallis not connected.

LINEERR_INVALPOINTER

The pointer is invalid.

LINEERR_NOMEM

Not enough memory is available.

LINEERR_OPERATIONUNAVAIL

The operation is unavailable.

LINEERR_NOTOWNER

The application is not the owner of this call.

LINEERR_RESOURCEUNAVAIL

The resources are unavailable.

LINEERR_INVALADDRESS

The destination address is invalid.

LINEERR_UNINITIALIZED

A parameter is uniinitialized.

LINEERR_ADDRESSBLOCKED

The destination address is blocked.

LINEERR_OPERATIONFAILED

The operation failed.

Remarks

If LINEERR_INVALADDRESS is returned, no dialing occurs.

Blind transfer differs from a consultation transfer in that no consultation call is made visible to the application. After the blind transfer successfully completes, the specified call is typically cleared from the application's line, and it transitions to the idle state.

The application's call handle remains valid after the transfer has completed. The application must deallocate its handle using the lineDeallocateCallfunction when it is no longer interested in the transferred call.

Note:
This function is for TAPI version 2.0 and later.

Requirements

Header tapi.h
Library coredll.lib
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also