WsWriteXmlnsAttribute function (webservices.h)

Writes an Xmlns attribute to the current element. WsWriteStartElement must be called before an attribute can be written and if the number of attributes exceeds the maximum number of attributes permitted for the writer the function returns WS_E_QUOTA_EXCEEDED. (See Windows Web Services Return Values.)

Syntax

HRESULT WsWriteXmlnsAttribute(
  [in]           WS_XML_WRITER       *writer,
  [in, optional] const WS_XML_STRING *prefix,
  [in]           const WS_XML_STRING *ns,
  [in]           BOOL                singleQuote,
  [in, optional] WS_ERROR            *error
);

Parameters

[in] writer

A pointer to the WS_XML_WRITER object to which the Xmlns attribute is written. The pointer must reference a valid XML Writer object.

[in, optional] prefix

A WS_XML_STRING pointer to the prefix to use for the start element. If the value referenced by this parameter is NULL the Writer will choose a attribute.

Specifies the prefix to use for the xmlns attribute.

[in] ns

A WS_XML_STRING pointer to the namespace to bind to the prefix.

[in] singleQuote

Determines whether to use a single or a double quote for the attribute value.

[in, optional] error

A pointer to a WS_ERROR object where additional information about the error should be stored if the function fails.

Return value

This function can return one of these values.

Remarks

The following conditions apply:

• If an empty prefix is specified then the default namespace is assigned.
• If a NULL prefix is specified then the Writer chooses the appropriate prefix for the namespace.
• If the Xmlns attribute is redundant it cannot be written.
• If a non-empty prefix is specified with an empty namespace WS_E_INVALID_FORMAT is returned.

Requirements