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4/8/2010

This function retrieves the specified held call.

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

Syntax 

LONG WINAPI lineUnhold(
  HCALL 
hCall 
);

Parameters

hCall

Handle to the call to be retrieved. The application must be an owner of this call. The call state of hCallmust be LINECALLSTATE_ONHOLD.

See LINECALLSTATEfor more information about LINECALLSTATE_ONHOLD.

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_REPLYmessage 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_OPERATIONUNAVAIL

The operation is unavailable.

LINEERR_INVALCALLSTATE

The call state of hCallis something other than onHold, onHoldPendingTransfer, or onHoldPendingConference.

LINEERR_OPERATIONFAILED

The operation failed.

LINEERR_NOMEM

Not enough memory is available.

LINEERR_RESOURCEUNAVAIL

The resources are unavailable.

LINEERR_NOTOWNER

The application is not an owner of this call.

LINEERR_UNINITIALIZED

A parameter is uninitialized.

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