private bool IsHooked(KBDLLHOOKSTRUCT lParam)
{
if ((lParam.vkCode == VirtualKeys.VK_ESCAPE) && GetModifierKeyPressed(ModifierKeys.Control))
{
Debug.WriteLine("Ctrl + Esc");
return((_BlockType & KeyboardBlockType.CtrlAndEsc) == KeyboardBlockType.CtrlAndEsc);
}
if ((lParam.vkCode == VirtualKeys.VK_TAB) && ((lParam.flags & LLKHF_ALTDOWN) == LLKHF_ALTDOWN))
{
Debug.WriteLine("Alt + Tab");
return((_BlockType & KeyboardBlockType.AltAndTab) == KeyboardBlockType.AltAndTab);
}
if ((lParam.vkCode == VirtualKeys.VK_ESCAPE) && ((lParam.flags & LLKHF_ALTDOWN) == LLKHF_ALTDOWN))
{
Debug.WriteLine("Alt + Esc");
return((_BlockType & KeyboardBlockType.AltAndEsc) == KeyboardBlockType.AltAndEsc);
}
if (CLang.In(lParam.vkCode, VirtualKeys.VK_LWIN, VirtualKeys.VK_RWIN))
{
Debug.WriteLine("Window Key");
return((_BlockType & KeyboardBlockType.WindowKey) == KeyboardBlockType.WindowKey);
}
Debug.WriteLine("false");
return(false);
}
/// <summary>
/// Processes the key event captured by the hook.
/// </summary>
private IntPtr HookCallback(int nCode, IntPtr wParam, ref KBDLLHOOKSTRUCT lParam)
{
if (nCode == HC_ACTION)
{
if (CLang.In(wParam, (IntPtr)WM_KEYDOWN, (IntPtr)WM_KEYUP, (IntPtr)WM_SYSKEYDOWN, (IntPtr)WM_SYSKEYUP))
{
if (IsHooked(lParam))
{
//OnKeyIntercepted(new KeyboardHookEventArgs(lParam.vkCode, AllowKey));
return((System.IntPtr) 1);
}
}
}
//Pass key to next application
return(NativeMethods.CallNextHookEx(hookID, nCode, wParam, ref lParam));
}