lineDeallocateCall (Windows Embedded CE 6.0)

1/6/2010

This function deallocates the specified call handle.

Syntax

LONG lineDeallocateCall(
  HCALL hCall
);

Parameters

• hCall
  [in] Call handle to be deallocated. An application with monitoring privileges for a call can always deallocate its handle for that call. An application with owner privilege for a call can deallocate its handle unless it is the sole owner of the call and the call is not in the idle state. The call handle is no longer valid after it has been deallocated.

Return Value

Zero indicates success. A negative error number indicates that an error occurred. The following table shows the return values for this function.

Remarks

The deallocation does not affect the call state of the physical call. It does, however, release internal resources related to the call.

In TAPI versions earlier than 2.0, if the application is the sole owner of a call and the call is not in the idle state, LINEERR_INVALCALLSTATE is returned. In this case, the application can first drop the call using the lineDrop function and deallocate its call handle afterwards. An application that has monitor privilege for a call can always deallocate its handle for the call.

When the lineDeallocateCall function deallocates a call handle, it also suspends further processing of any outstanding LINE_REPLY messages for the call. An application must be designed not to wait indefinitely for LINE_REPLY messages for each corresponding call to an asynchronous function if it also uses the lineDeallocateCall function to deallocate handles.

Requirements

See Also

Reference

lineDrop
TSPI_lineCloseCall
LINE_REPLY

Concepts

TAPI Line Device Functions