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IXMLDOMElement::setAttribute

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IXMLDOMElement::setAttribute

The setAttribute method specifies the value of the named attribute.

Syntax

  HRESULT setAttribute(
 BSTR bstrName, 
 VARIANT varValue
);

Parameters

bstrName

[in] BSTR containing the name of the attribute. If an attribute with that name already exists, its value is changed. If an attribute with that name does not exist, it is created.

varValue

[in] VARIANT containing the value for the named attribute.

Return Values

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

Remarks

If an attribute with the supplied name already exists, this method changes that attribute's value to the value supplied in the varValue parameter. The supplied bstrName parameter is not parsed, so any markup, such as syntax meant to be recognized as an entity reference, is treated as literal text and must be appropriately escaped by the implementation when it is written out.

Example Code

The following example sets the name and value of a new attribute for the specified element node.

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

// Declare variables.
IWMSServer*         pServer;
IXMLDOMDocument*    pPlaylist;
IXMLDOMElement*     pXMLElement;

HRESULT             hr;
CComBSTR            bstrName;
CComVariant         varFile;

// 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;

// Create the playlist object.
hr = pServer->CreatePlaylist(&pPlaylist);

// Create a media element.
bstrName = "media";
hr = pPlaylist->createElement(bstrName, &pXMLElement);
if (FAILED(hr)) goto EXIT;

// Set the src attribute for the media element.
bstrName = "src";
varFile = "welcome1.asf";
hr = pXMLElement->setAttribute(bstrName, varFile);
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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