private static IAutomationSource GetAutomationSource(string sourceAssemblyName)
{
Assembly sourceAssembly = null;
try {
sourceAssembly = Assembly.Load(sourceAssemblyName);
} catch (Exception e) {
Log.Warn(string.Format("Error loading UIA source ({0}): {1}",
sourceAssemblyName,
e));
return(null);
}
Type sourceType = null;
// Quickie inefficent implementation
Type sourceInterfaceType = typeof(IAutomationSource);
foreach (Type type in sourceAssembly.GetTypes())
{
if (sourceInterfaceType.IsAssignableFrom(type))
{
sourceType = type;
break;
}
}
if (sourceType == null)
{
Log.Error("No UIA source found in assembly: " +
sourceAssemblyName);
return(null);
}
try {
IAutomationSource source
= (IAutomationSource)Activator.CreateInstance(sourceType);
if (!source.IsAccessibilityEnabled)
{
return(null);
}
source.Initialize();
return(source);
} catch (Exception e) {
Log.Error("Failed to load UIA source: " + e);
return(null);
}
}
