firstChild method

Retrieves a reference to the first child of the current node of the filtered TreeWalker hierarchy and updates IDOMTreeWalker::currentNode.

 

Syntax

HRESULT retVal = object.firstChild(oNode);

Parameters

• oNode [out, retval]
  Type: Node

  Object that receives the first child node in the filtered TreeWalker hierarchy.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Standards information

• Document Object Model (DOM) Level 2 Traversal and Range Specification, Section 1.2

Remarks

IDOMTreeWalker::firstChild sets the IDOMTreeWalker::currentNode to the returned node.