public static bool UnregisterTabBar()
{
using (new Keychain(rwLockTabBar, true)) {
QTTabBarClass tabbar;
if (dictTabInstances.TryGetValue(Thread.CurrentThread, out tabbar))
{
IntPtr handle = tabbar.Handle;
dictTabInstances.Remove(Thread.CurrentThread);
sdTabHandles.Remove(handle);
ICommService service = GetChannel();
if (service != null)
{
service.DeleteInstance(handle);
}
}
return(false);
}
}