public static void Unregister(Type t)
{
if (t != null && t.IsSubclassOf(typeof(PreviewHandlerBase)))
{
object[] attrs = (object[])t.GetCustomAttributes(typeof(PreviewHandlerAttribute), true);
if (attrs != null && attrs.Length == 1)
{
PreviewHandlerAttribute attr = attrs[0] as PreviewHandlerAttribute;
UnregisterPreviewHandler(attr.Extension, t.GUID.ToString("B"), attr.AppId);
}
}
}
public static void Register(Type t)
{
if (t != null && t.IsSubclassOf(typeof(PreviewHandler)))
{
object[] attrs = (object[])t.GetCustomAttributes(typeof(PreviewHandlerAttribute), true);
try
{
if (attrs != null && attrs.Length == 1)
{
PreviewHandlerAttribute attr = attrs[0] as PreviewHandlerAttribute;
RegisterPreviewHandler(attr.Name, attr.Extension, t.GUID.ToString("B"), attr.AppId);
}
}
catch (Exception e)
{
Trace.WriteLine(e);
}
}
}
