/// <summary>
/// Check if the combinations are pressed
/// </summary>
/// <param name="keyboardHookEventArgs">KeyboardHookEventArgs</param>
public bool Handle(KeyboardHookEventArgs keyboardHookEventArgs)
{
bool handled = false;
foreach (var keyboardHookEventHandler in _keyCombinations)
{
handled |= keyboardHookEventHandler.Handle(keyboardHookEventArgs);
}
return(handled);
}
/// <summary>
/// Handle key presses to test if the combination is available
/// </summary>
/// <param name="keyboardHookEventArgs">KeyboardHookEventArgs</param>
public virtual bool Handle(KeyboardHookEventArgs keyboardHookEventArgs)
{
if (IgnoreInjected && keyboardHookEventArgs.IsInjectedByProcess)
{
return(false);
}
bool keyMatched = false;
bool isRepeat = false;
for (int i = 0; i < TriggerCombination.Length; i++)
{
if (!CompareVirtualKeyCode(keyboardHookEventArgs.Key, TriggerCombination[i]))
{
continue;
}
isRepeat = AvailableKeys[i];
AvailableKeys[i] = keyboardHookEventArgs.IsKeyDown;
keyMatched = true;
break;
}
if (!keyMatched)
{
if (keyboardHookEventArgs.IsKeyDown)
{
OtherPressedKeys.Add(keyboardHookEventArgs.Key);
}
else
{
OtherPressedKeys.Remove(keyboardHookEventArgs.Key);
}
}
// check if this combination is handled
var isHandled = keyboardHookEventArgs.IsKeyDown && OtherPressedKeys.Count == 0 && AvailableKeys.All(b => b);
// Mark as handled if the key combination is handled and we don't have pass-through
if (isHandled && !IsPassThrough)
{
keyboardHookEventArgs.Handled = true;
}
// Do not return a true, if this is a repeat and CanRepeat is disabled
if (!CanRepeat && isRepeat)
{
return(false);
}
return(isHandled);
}
/// <summary>
/// Check if the combinations are pressed
/// </summary>
/// <param name="keyboardHookEventArgs">KeyboardHookEventArgs</param>
public bool Handle(KeyboardHookEventArgs keyboardHookEventArgs)
{
var currentHandled = CurrentHandler.Handle(keyboardHookEventArgs);
var currentNotPressed = !CurrentHandler.HasKeysPressed;
if (currentHandled)
{
_isHandled[_offset] = true;
}
else if (!keyboardHookEventArgs.IsKeyDown && _offset > 0 && currentNotPressed && !keyboardHookEventArgs.IsModifier)
{
Reset();
}
// Check if timeout passed, to reset the sequence
if (_expireAfter.HasValue)
{
var isExpired = _expireAfter.Value < DateTimeOffset.Now;
if (isExpired)
{
if (currentNotPressed)
{
Reset();
}
return(false);
}
}
var allHandled = _isHandled.All(b => b);
// check if we need to advance
if (_isHandled[_offset] && currentNotPressed && !AdvanceHandler())
{
// Advance
Reset();
}
return(currentHandled && allHandled);
}
/// <summary>
/// Create the KeyboardHookEventArgs from the parameters which where in the event
/// </summary>
/// <param name="wParam">IntPtr</param>
/// <param name="lParam">IntPtr</param>
/// <returns>KeyboardHookEventArgs</returns>
private static KeyboardHookEventArgs CreateKeyboardEventArgs(IntPtr wParam, IntPtr lParam)
{
var isKeyDown = wParam == (IntPtr)WmKeydown || wParam == (IntPtr)WmSyskeydown;
var keyboardLowLevelHookStruct = (KeyboardLowLevelHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardLowLevelHookStruct));
bool isModifier = keyboardLowLevelHookStruct.VirtualKeyCode.IsModifier();
// Check the key to find if there any modifiers, store these in the global values.
switch (keyboardLowLevelHookStruct.VirtualKeyCode)
{
case VirtualKeyCode.Capital:
if (isKeyDown)
{
_capsLock = !_capsLock;
}
break;
case VirtualKeyCode.NumLock:
if (isKeyDown)
{
_numLock = !_numLock;
}
break;
case VirtualKeyCode.Scroll:
if (isKeyDown)
{
_scrollLock = !_scrollLock;
}
break;
case VirtualKeyCode.LeftShift:
_leftShift = isKeyDown;
break;
case VirtualKeyCode.RightShift:
_rightShift = isKeyDown;
break;
case VirtualKeyCode.LeftControl:
_leftCtrl = isKeyDown;
break;
case VirtualKeyCode.RightControl:
_rightCtrl = isKeyDown;
break;
case VirtualKeyCode.LeftMenu:
_leftAlt = isKeyDown;
break;
case VirtualKeyCode.RightMenu:
_rightAlt = isKeyDown;
break;
case VirtualKeyCode.LeftWin:
_leftWin = isKeyDown;
break;
case VirtualKeyCode.RightWin:
_rightWin = isKeyDown;
break;
}
var keyEventArgs = new KeyboardHookEventArgs
{
TimeStamp = keyboardLowLevelHookStruct.TimeStamp,
Key = keyboardLowLevelHookStruct.VirtualKeyCode,
Flags = keyboardLowLevelHookStruct.Flags,
IsModifier = isModifier,
IsKeyDown = isKeyDown,
IsLeftShift = _leftShift,
IsRightShift = _rightShift,
IsLeftAlt = _leftAlt,
IsRightAlt = _rightAlt,
IsLeftControl = _leftCtrl,
IsRightControl = _rightCtrl,
IsLeftWindows = _leftWin,
IsRightWindows = _rightWin,
IsScrollLockActive = _scrollLock,
IsNumLockActive = _numLock,
IsCapsLockActive = _capsLock
};
// Do we need this??
//http://msdn.microsoft.com/en-us/library/windows/desktop/ms646286(v=vs.85).aspx
if (!keyEventArgs.IsAlt && (wParam == (IntPtr)WmSyskeydown || wParam == (IntPtr)WmSyskeyup))
{
keyEventArgs.IsLeftAlt = true;
keyEventArgs.IsSystemKey = true;
}
return(keyEventArgs);
}
