internal void AddToDisposeList(AutomationElement elem) {
disposeList.Add(elem);
}
public AutomationElement FindMatchingChild(Predicate<AutomationElement> pred) {
IUIAutomationTreeWalker walker = factory.CreateTreeWalker();
try {
IUIAutomationElement elem;
walker.GetFirstChildElement(pElement, out elem);
while(elem != null) {
AutomationElement ae = new AutomationElement(elem, factory);
if(pred(ae)) {
return ae;
}
IUIAutomationElement next;
walker.GetNextSiblingElement(elem, out next);
elem = next;
}
return null;
}
catch(COMException) {
return null;
}
finally {
if(walker != null) Marshal.ReleaseComObject(walker);
}
}