int testEvent(TreeNode& tr, int nRow, int nEvent, DWORD& dwEnables, LPCSTR lpcszNodeName, WndContainer& getNContainer, string& strAux, string& strErrMsg)
{

	TreeNode trN = tree_get_node(tr, nRow); // get changed tree node
	if( trN && trN.tagName == "test") 
	{
		tr.Value.dVal = trN.nVal;
	}

	return 0;//no error
}

void testGetNApplyButton()
{
	GETN_TREE(tr)
	GETN_CHECK(test, "Yes or No", 0)
	GETN_NUM(Value, "Value", 0)
	
	if( GetNBox(tr, testEvent) )
	{
		// enter here if click OK button
		out_tree(tr);
	}
}