Databases
StackOverflow2013
Postsdbo
POKeyboard hook stops working after using Remote desktop
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POKeyboard hook stops working after using Remote desktop
    primarykey
    data
    text
    <p>I've the following problem:</p> <p>My global keyboard hook stops working after i start any Remote Desktop session, even if session is closed hook doesn't work at all.</p> <p>Here is code of my hook</p> <pre><code>public class KeyboardHooker : IDisposable { private IntPtr _hhook; private static User32.LowLevelKeyboardProc _delegate; public KeyboardHooker() { _delegate = new User32.LowLevelKeyboardProc(HookCallback); } public void SetHook() { if (IsHookSetted) return; using (Process curProcess = Process.GetCurrentProcess()) using (ProcessModule curModule = curProcess.MainModule) { _hhook = User32.SetWindowsHookEx(User32.WH_KEYBOARD_LL, _delegate, Kernel32.GetModuleHandle(curModule.ModuleName), 0); } } public void ReleaseHook() { if (IsHookSetted) { User32.UnhookWindowsHookEx(_hhook); _hhook = IntPtr.Zero; } } public bool IsHookSetted { get { return _hhook != IntPtr.Zero; } } private IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam) { if (nCode &gt;= 0) { bool handled = false; switch (wParam.ToInt32()) { case Messages.WM_SYSKEYDOWN: case Messages.WM_KEYDOWN: int vkCode = Marshal.ReadInt32(lParam); Keys keys = ExtractKey(vkCode); RaiseKeyDown(keys, ref handled); break; case Messages.WM_SYSKEYUP: case Messages.WM_KEYUP: vkCode = Marshal.ReadInt32(lParam); keys = ExtractKey(vkCode); RaiseKeyUp(keys, ref handled); break; } if (handled) return IntPtr.Add(IntPtr.Zero, 1); } GC.KeepAlive(this); return User32.CallNextHookEx(_hhook, nCode, wParam, lParam); } private Keys ExtractKey(int wParam) { Keys key = (Keys)wParam; return key; } #region Events public event KeyEventHandler KeyDown; public event KeyEventHandler KeyUp; private void RaiseKeyUp(Keys keys, ref bool handled) { if (KeyUp != null) { KeyEventArgs e = new KeyEventArgs(keys); KeyUp(this, e); handled = e.Handled; } } private void RaiseKeyDown(Keys keys, ref bool handled) { if (KeyDown != null) { KeyEventArgs e = new KeyEventArgs(keys); KeyDown(this, e); handled = e.Handled; } } #endregion #region Implementation of IDisposable /// &lt;summary&gt; /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. /// &lt;/summary&gt; /// &lt;filterpriority&gt;2&lt;/filterpriority&gt; public void Dispose() { ReleaseHook(); } #endregion } </code></pre> <p>Does anybody know how to solve this problem?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USDisposer
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POKeyboard hook stops working after using Remote desktop
      1. USStefan Koell
      1. VTFavorite
    2. VO
      singulars
      1. POKeyboard hook stops working after using Remote desktop
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POKeyboard hook stops working after using Remote desktop
      1. USJags
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload