private static bool DoAccTest(RunningWindowTableItemCollection list, IntPtr mainHandle, IntPtr childHandle, int maximumResultCount)
{
object accObject = Win32.AccessibleObjectFromWindow(childHandle);
if (null != accObject)
{
string name = TypeDescriptor.GetClassName(accObject);
string component = TypeDescriptor.GetComponentName(accObject);
string className = Win32.GetClassName(childHandle);
IntPtr processID = Win32.GetWindowThreadProcessId(childHandle);
ProxyInformation.ProcessElevation elevation = ProcessElevation.ConvertToProcessElevation(ProcessElevation.IsProcessElevated(processID));
COMTypes.ITypeInfo typeInfo = RunningObjectTable.TryCreateTypeInfo(accObject);
string id = GetTypeGuid(typeInfo).ToString();
string libraryID = RunningObjectTable.GetParentLibraryGuid(typeInfo).ToString();
if (null != typeInfo)
{
RunningObjectTable.ReleaseTypeInfo(typeInfo);
}
ProxyInformation item =
new ProxyInformation(accObject, String.Format("{0}-{1}", childHandle, className), id, name, component, libraryID, processID, elevation);
if (list.Count <= maximumResultCount)
{
list.Add(item);
}
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Returns all running com proxies there is match with given arguments
/// </summary>
/// <param name="componentName">component name, for example Excel</param>
/// <param name="className">class name, for example Application</param>
/// <returns>COM proxy enumerator</returns>
public static IDisposableSequence GetActiveInstances(string componentName, string className)
{
string compName = ValidateArgumentString(componentName);
string clsName = ValidateArgumentString(className);
if (compName == "EXCEL" && className == "APPLICATION")
{
return(GetActiveExcelApplicationProxiesFromDesktop());
}
else
{
return(RunningObjectTable.GetActiveProxies(componentName, className));
}
}
/// <summary>
/// Returns a running com proxy there is match with given arguments
/// </summary>
/// <param name="componentName">component name, for example Excel or null as wildcard</param>
/// <param name="className">class name, for example Application or null as wildcard</param>
/// <param name="throwExceptionIfNothingFound">throw an exception if no proxy was found</param>
/// <returns>proxy instance or null</returns>
public static object GetActiveInstance(string componentName, string className, bool throwExceptionIfNothingFound)
{
string compName = ValidateArgumentString(componentName);
string clsName = ValidateArgumentString(className);
if (compName == "EXCEL" && className == "APPLICATION")
{
object result = GetActiveExcelApplicationProxyFromDesktop();
if (null == result && throwExceptionIfNothingFound)
{
throw new System.Runtime.InteropServices.COMException("Target instance is not running.");
}
return(result);
}
else
{
return(RunningObjectTable.GetActiveProxy(componentName, className, throwExceptionIfNothingFound));
}
}
private static IDisposableSequence <ProxyInformation> GetKnownAccessibleProxiesFromPath(IEnumerable <AccessibleWindowTarget> targets, int maximumResultCount)
{
if (null == targets)
{
throw new ArgumentNullException("targets");
}
RunningWindowTableItemCollection result = new RunningWindowTableItemCollection();
if (maximumResultCount <= 0)
{
return(result);
}
foreach (AccessibleWindowTarget target in targets)
{
WindowEnumerator enumerator =
new WindowEnumerator(
target.MainClassName, target.MainClassNameEnd, (WindowEnumerator.FilterMode)Convert.ToInt32(target.NameCompare));
IntPtr[] mainHandles = enumerator.EnumerateWindows(_mainWindowTimeoutMilliseconds);
if (null == mainHandles)
{
continue;
}
foreach (IntPtr item in mainHandles)
{
ChildWindowBatchEnumerator childEnumerator =
new ChildWindowBatchEnumerator(item);
foreach (string subItem in target.ChildPath)
{
childEnumerator.SearchOrder.Add(
new ChildWindowBatchEnumerator.SearchCriteria(subItem));
}
IntPtr[] childHandles = childEnumerator.EnumerateWindows(_childWindowTimeoutMilliseconds);
if (null == childHandles)
{
continue;
}
foreach (IntPtr childHandle in childHandles)
{
object accObject = Win32.AccessibleObjectFromWindow(childHandle);
if (null != accObject && accObject is MarshalByRefObject)
{
object targetProxy = null;
if (!String.IsNullOrEmpty(target.AccPropertyName))
{
targetProxy = TryInvokeProperty(accObject, target.AccPropertyName);
Marshal.ReleaseComObject(accObject);
}
else
{
targetProxy = accObject;
}
if (null != targetProxy)
{
string itemComponentName = TypeDescriptor.GetComponentName(targetProxy);
COMTypes.ITypeInfo typeInfo = RunningObjectTable.TryCreateTypeInfo(targetProxy);
string library = RunningObjectTable.GetParentLibraryGuid(typeInfo).ToString();
string id = GetTypeGuid(typeInfo).ToString();
string itemClassName = TypeDescriptor.GetClassName(targetProxy);
string itemCaption = itemClassName;
if (!String.IsNullOrWhiteSpace(itemClassName) && !String.IsNullOrWhiteSpace(itemComponentName))
{
itemCaption = String.Format("{0} {1}", itemComponentName, itemClassName);
}
IntPtr procID = Win32.GetWindowThreadProcessId(childHandle);
ProxyInformation.ProcessElevation procElevation =
ProcessElevation.ConvertToProcessElevation(ProcessElevation.IsProcessElevated(procID));
ProxyInformation info = new ProxyInformation(targetProxy,
itemCaption, id, itemClassName, itemComponentName, library, procID, procElevation);
result.Add(info);
if (null != typeInfo)
{
RunningObjectTable.ReleaseTypeInfo(typeInfo);
}
if (result.Count >= maximumResultCount)
{
return(result);
}
}
}
}
}
}
return(result);
}
