ITMSPAddress::CreateMSPCall method (msp.h)

The CreateMSPCall method creates an MSP Call object. TAPI aggregates this onto the main Call object and exposes the ITStreamControl interface.

Syntax

HRESULT CreateMSPCall(
  [in]  MSP_HANDLE hCall,
  [in]  DWORD      dwReserved,
  [in]  DWORD      dwMediaType,
  [in]  IUnknown   *pOuterUnknown,
  [out] IUnknown   **ppStreamControl
);

Parameters

[in] hCall

Handle for this MSP.

[in] dwReserved

Reserved value – will be 0.

[in] dwMediaType

Indicates media types required for the call.

[in] pOuterUnknown

The pointer to the IUnknown interface on the TAPI 3 call object. Since the MSP Call object is aggregated in the TAPI 3 call object, it needs to know the outer IUnknown.

[out] ppStreamControl

Pointer to IUnknown interface pointer of ITStreamControl interface for newly created call.

Return value

This method can return one of these values.

Requirements

See also

ITMSPAddress

Media Service Provider Interface (MSPI)