IWMSAnnouncementStreamFormats::Remove

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IWMSAnnouncementStreamFormats::Remove

The Remove method removes a file name, by index, from the IWMSAnnouncementStreamFormats collection.

  • Note   This method is available only on Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition, and Windows Server 2008.

Syntax

  HRESULT Remove(
  VARIANT  varIndex
);

Parameters

varIndex

[in] VARIANT containing the index of the item to remove.

Return Values

If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.

Return code Number Description
DISP_E_BADINDEX 0x8002000B varIndex is an invalid index location.
E_POINTER 0x80004003 pVal is a NULL pointer argument.

Example Code

#include <windows.h>
#include <atlbase.h>    // Includes CComBSTR and CComVariant.
#include "wmsserver.h"

// Declare variables and interfaces.
IWMSServer                    *pServer;
IWMSPublishingPoints          *pPubPoints;
IWMSPublishingPoint           *pPubPoint;
IWMSBroadcastPublishingPoint  *pBCPubPoint;
IWMSAnnouncementStreamFormats *pAnnounceStreamFormats;

HRESULT         hr;
CComVariant     varIndex;
CComBSTR        bstrFile;
long            lCount;

// Initialize the COM library and retrieve a pointer
// to an IWMSServer interface.
hr = CoInitialize(NULL);
hr = CoCreateInstance(CLSID_WMSServer,
                      NULL,
                      CLSCTX_ALL,
                      IID_IWMSServer,
                      (void **)&pServer);
if (FAILED(hr)) goto EXIT;

// Retrieve a pointer to the IWMSPublishingPoints
// interface and retrieve the number of publishing points.
hr = pServer->get_PublishingPoints(&pPubPoints);
if (FAILED(hr)) goto EXIT;
hr = pPubPoints->get_Count(&lCount);
if (FAILED(hr)) goto EXIT;

// Retrieve each publishing point and query the
// IWMSBroadcastPublishingPoint interface.
for (long x = 0; x < lCount; x++)
{
    varIndex = x;
    hr = pPubPoints->get_Item(varIndex, &pPubPoint);
    if (FAILED(hr)) goto EXIT;
    hr = pPubPoint->QueryInterface(IID_IWMSBroadcastPublishingPoint,
                                  (void **)&pBCPubPoint);
    if (FAILED(hr)) goto EXIT;

    // Release temporary COM objects.
    pPubPoint->Release();

    if (SUCCEEDED(hr))
        break;
}

// Retrieve a pointer to the IWMSAnnouncementStreamFormats
// interface.
hr = pBCPubPoint->get_AnnouncementStreamFormats(&pAnnounceStreamFormats);
if (FAILED(hr)) goto EXIT;

// Remove the first file from the
// IWMSAnnouncementStreamFormats interface.
varIndex = 0;
hr = pAnnounceStreamFormats->Remove(varIndex);
if (FAILED(hr)) goto EXIT;

EXIT:
    // TODO: Release temporary COM objects and uninitialize COM.

Requirements

Header: wmsserver.h.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003 family, Windows Server 2008 family.

See Also

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