lineSetCallPrivilege

The lineSetCallPrivilege function sets the application's privilege to the specified privilege.

LONG lineSetCallPrivilege(

HCALL hCall,

DWORD dwCallPrivilege

);

Parameters

hCall

A handle to the call whose privilege is to be set. The call state of hCall can be any state.

dwCallPrivilege

The privilege the application wants to have for the specified call. Only a single flag can be set. This parameter uses the following LINECALLPRIVILEGE_ constants:

LINECALLPRIVILEGE_MONITOR

The application requests monitor privilege to the call. These privileges allow the application to monitor state changes and to query information and status about the call.

LINECALLPRIVILEGE_OWNER

The application requests owner privilege to the call. These privileges allow the application to manipulate the call in ways that affect the state of the call.

Return Values

Returns zero if the request is successful or a negative error number if an error has occurred. Possible return values are:

LINEERR_INVALCALLHANDLE, LINEERR_OPERATIONFAILED, LINEERR_INVALCALLSTATE, LINEERR_RESOURCEUNAVAIL, LINEERR_INVALCALLPRIVILEGE, LINEERR_UNINITIALIZED, LINEERR_NOMEM.

Remarks

If the application is the sole owner of a non-idle call and wants to change its privilege to monitor, a LINEERR_INVALCALLSTATE error is returned. If the application wants to, it can first drop the call using lineDrop to make the call transition to the idle state and then change its privilege.

See Also

lineDrop

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