IWMReaderNetworkConfig::GetUDPPortRanges method (wmsdkidl.h)

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetUDPPortRanges method retrieves the UDP port number ranges used for receiving data.

Syntax

HRESULT GetUDPPortRanges(
  [out]     WM_PORT_NUMBER_RANGE *pRangeArray,
  [in, out] DWORD                *pcRanges
);

Parameters

[out] pRangeArray

Pointer to an array of WM_PORT_NUMBER_RANGE structures allocated by the caller. Pass NULL to get the size of the array.

[in, out] pcRanges

On input, pointer to a DWORD containing the length of the array passed in pRangeArray. On output, pointer to the required array size.

Return value

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

Remarks

You should make two calls to this method. On the first call, pass NULL for pRangeArray. On return, the value pointed to by pcRanges is set to the size of the array that you should allocate. Then you can allocate the required amount of memory for the array and pass a pointer to it as pRangeArray on the second call.

Requirements

See also

IWMReaderNetworkConfig Interface

IWMReaderNetworkConfig::SetUDPPortRanges