public Hook(IMessageHandlerClient client)
{
m_Client=client;
m_mouseHook = new MouseProc(OnMouseHook);
m_keyboardHook=new KeyboardProc(OnKeyboardHook);
m_hMouseHook = SetWindowsHookEx(WH_MOUSE, m_mouseHook, IntPtr.Zero, GetCurrentThreadId());
m_hKeyboardHook=SetWindowsHookExKeyboard(WH_KEYBOARD,m_keyboardHook,IntPtr.Zero,GetCurrentThreadId());
if (m_hMouseHook == IntPtr.Zero || m_hKeyboardHook==IntPtr.Zero)
{
throw new Win32Exception();
}
}
public static void UnregisterMessageClient(IMessageHandlerClient client)
{
if (m_Clients.Contains(client))
{
LockCookie cookie1 = new LockCookie();
bool readerLockHeld = MessageHandler.rwClientsListLock.IsReaderLockHeld;
if (readerLockHeld)
{
cookie1 = MessageHandler.rwClientsListLock.UpgradeToWriterLock(-1);
}
else
{
MessageHandler.rwClientsListLock.AcquireWriterLock(-1);
}
bool unregister = false;
try
{
m_Clients.Remove(client);
unregister = m_Clients.Count == 0;
}
finally
{
if (readerLockHeld)
{
MessageHandler.rwClientsListLock.DowngradeFromWriterLock(ref cookie1);
}
else
{
MessageHandler.rwClientsListLock.ReleaseWriterLock();
}
}
if (BarUtilities.AutoRemoveMessageFilter && unregister && m_FilterOnThread.ContainsKey(System.Threading.Thread.CurrentThread.GetHashCode()))
UninstallMessageFilter();
}
}
public static void RegisterMessageClient(IMessageHandlerClient client)
{
if(m_Clients.Contains(client))
return;
if(!m_FilterOnThread.ContainsKey(System.Threading.Thread.CurrentThread.GetHashCode()))
InstallMessageFilter();
LockCookie cookie1 = new LockCookie();
bool readerLockHeld = MessageHandler.rwClientsListLock.IsReaderLockHeld;
if (readerLockHeld)
{
cookie1 = MessageHandler.rwClientsListLock.UpgradeToWriterLock(-1);
}
else
{
MessageHandler.rwClientsListLock.AcquireWriterLock(-1);
}
try
{
m_Clients.Add(client);
}
finally
{
if (readerLockHeld)
{
MessageHandler.rwClientsListLock.DowngradeFromWriterLock(ref cookie1);
}
else
{
MessageHandler.rwClientsListLock.ReleaseWriterLock();
}
}
}
private static bool IsInvokeRequired(IMessageHandlerClient client)
{
DotNetBarManager manager = client as DotNetBarManager;
if (manager != null && manager.ParentForm != null && manager.ParentForm.InvokeRequired)
return true;
else if (client is Control && ((Control)client).InvokeRequired)
return true;
return false;
}