IEIsXMLNSRegistered function
Determines if the specified XML namespace is registered.
Syntax
HRESULT STDAPICALLTYPE IEIsXMLNSRegistered(
_In_ LPCWSTR lpszURI,
_Out_ GUID *pCLSID
);
Parameters
lpszURI [in]
A pointer to the XML namespace schema URI.pCLSID [out]
A pointer to the registered CLSID for the XML namespace, if successful.
Return value
This function can return one of these values.
| Return code | Description |
|---|---|
| E_NOTFOUND | There is no registered CLSID for the URI. |
| E_INVALIDARG | The pCLSID is NULL. |
| CO_E_CLASSSTRING | The operation failed. |
Remarks
The IEIsXMLNSRegistered function can be used to determine whether a handler has been registered for specialized XML formats, such as Scalable Vector Graphics (SVG), or MathML.
On Windows Server 2003 (x64) Datacenter Edition, this method returns CO_E_CLASSSTRING. You cannot check if an XML namespace is registered on that platform.
Requirements
Minimum supported client |
Windows XP with SP2, Windows Vista |
Minimum supported server |
Windows Server 2008 |
Header |
Mshtmhst.h |
DLL |
Mshtml.dll; Mshtml.dll |