private void KeyboardWatcherThreadWork()
{
if (Application.OpenForms.Count == 0)
{
return;
}
Keyboard keyboard = null;
using (var directInput = new DirectInput())
{
try
{
keyboard = new Keyboard(directInput);
keyboard.SetCooperativeLevel(Application.OpenForms.Count == 0 ? null : Application.OpenForms[0], CooperativeLevel.Background | CooperativeLevel.Nonexclusive);
keyboard.Properties.BufferSize = 255;
keyboard.Acquire();
var lastKeyboardState = new bool[Enum.GetValues(typeof(Key)).Length];
var currentKeyboardState = new bool[Enum.GetValues(typeof(Key)).Length];
while (true)
{
try
{
var curState = keyboard.GetCurrentState();
var possibleKeys = Enum.GetValues(typeof(Key));
var i = 0;
foreach (Key thisKey in possibleKeys)
{
currentKeyboardState[i] = curState.IsPressed(thisKey);
i++;
}
i = 0;
foreach (Key thisKey in possibleKeys)
{
var isPressedNow = currentKeyboardState[i];
var wasPressedBefore = lastKeyboardState[i];
if (isPressedNow && !wasPressedBefore)
{
var winFormsKey =
(Keys)NativeMethods.MapVirtualKey((uint)thisKey, NativeMethods.MAPVK_VSC_TO_VK_EX);
AddExtendedKeyInfo(winFormsKey);
var eventArgs = new KeyEventArgs(winFormsKey);
_keyDownEventHandler.HandleKeyDownEvent(this, eventArgs);
}
i++;
}
Array.Copy(currentKeyboardState, lastKeyboardState, currentKeyboardState.Length);
}
catch (Exception e)
{
_log.Debug(e.Message, e);
}
Thread.Sleep(50);
}
}
catch (ThreadInterruptedException)
{
}
catch (ThreadAbortException)
{
Thread.ResetAbort();
}
catch (Exception e)
{
_log.Error(e.Message, e);
}
finally
{
if (keyboard != null)
{
try
{
keyboard.Unacquire();
}
catch { }
try
{
Common.Util.DisposeObject(keyboard);
}
catch { }
keyboard = null;
}
}
}
}
