hasFeature Method
Indicates support for the specified feature.
[Script]
Script Syntax
boolVal = objXMLDOMImplementation.hasFeature(feature, version);
Parameters
- feature
- A string that specifies the feature to test. In Level 1, valid feature values are
"XML"
,"DOM"
, and"MS-DOM"
(case-insensitive). - version
- A string that specifies the version number to test, or if Null, tests for implementation of the feature in any version. In Level 1,
"1.0"
is the valid version value.
Return Value
Boolean. Returns True if the specified feature is implemented; otherwise False.
Example
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.5.0"); var bool = xmlDoc.implementation.hasFeature("DOM", "1.0"); alert(bool);
[Visual Basic]
Visual Basic Syntax
boolVal = objXMLDOMImplementation.hasFeature(feature, version)
Parameters
- feature
- A string that specifies the feature to test. In Level 1, valid feature values are
"XML"
,"DOM"
, and"MS-DOM"
(case-insensitive). - version
- A string that specifies the version number to test, or if Null, tests for implementation of the feature in any version. In Level 1,
"1.0"
is the valid version value.
Return Value
Boolean. Returns True if the specified feature is implemented; otherwise False.
Example
Dim xmlDoc As New Msxml2.DOMDocument50 Dim bool As Boolean bool = xmlDoc.implementation.hasFeature("DOM", "1.0") MsgBox bool
[C/C++]
C/C++ Syntax
HRESULT hasFeature( BSTR feature, BSTR version, VARIANT_BOOL *hasFeature);
Parameters
- feature [in]
- The feature to test. In Level 1, valid feature values are
"XML"
,"DOM"
, and"MS-DOM"
(case-insensitive). - version [in]
- The version number to test, or, if Null, tests for implementation of the feature in any version. In Level 1,
"1.0"
is the only valid version value. - hasFeature [out, retval]
- True if the specified feature is implemented; otherwise False.
C/C++ Return Values
- S_OK
- The value returned if successful.
C/C++ Example
IXMLDOMImplementation *pIXMLDOMImplementation = NULL; VARIANT_BOOL varbFlag ; BSTR bstrOutput = NULL; BSTR bstrFeature = ::SysAllocString(_T("MS-DOM")); HRESULT hr; IXMLDOMDocument *pIXMLDOMDocument = NULL; try { // Create an instance of DOMDocument and initialize pIXMLDOMDocument. // Load/create an XML fragment. hr = pIXMLDOMDocument->get_implementation(&pIXMLDOMImplementation); if(SUCCEEDED(hr) && pIXMLDOMImplementation) { hr = pIXMLDOMImplementation->hasFeature(bstrFeature, _T("1.0"), &varbFlag); if(varbFlag == VARIANT_TRUE ) bstrOutput = ::SysAllocString(_T("Feature Supported")); else bstrOutput = ::SysAllocString(_T("Feature not Supported")); ::MessageBox(NULL, bstrOutput, bstrFeature, MB_OK); ::SysFreeString(bstrOutput); bstrOutput = NULL; ::SysFreeString(bstrFeature); bstrFeature = NULL; pIXMLDOMImplementation->Release(); } } catch(...) { if(bstrOutput) ::SysFreeString(bstrOutput); if(bstrFeature) ::SysFreeString(bstrFeature); if(pIXMLDOMImplementation) pIXMLDOMImplementation->Release(); DisplayErrorToUser(); } // Release pIXMLDOMDocument when finished using it.
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See Also
Applies to: IXMLDOMImplementation