Condividi tramite

IKsTopologyInfo::get_ConnectionInfo method (vidcap.h)

  • Articolo

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The get_ConnectionInfo method returns information about one node connection in the filter.

Syntax

HRESULT get_ConnectionInfo(
  [in]  DWORD                 dwIndex,
  [out] KSTOPOLOGY_CONNECTION *pConnectionInfo
);

Parameters

[in] dwIndex

Index of the connection. To find the number of connections, call the IKsTopologyInfo::get_NumConnections method.

[out] pConnectionInfo

Pointer to a KSTOPOLOGY_CONNECTION structure allocated by the caller. The method fills in this structure with the connection information.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
 The method succeeded.

Requirements

Requirement Value
Minimum supported client Windows XP with SP2 [desktop apps only]
Minimum supported server Windows Server 2003 R2 [desktop apps only]
Target Platform Windows
Header vidcap.h

See also

Error and Success Codes

IKsTopologyInfo Interface