/// <summary>
/// Fires the event to any listeners.
/// </summary>
/// <param name="args">Arguments to send.</param>
private void RaiseEvent(MouseChangeEventArgs args)
{
if (!object.ReferenceEquals(null, MouseChangeEvent))
{
MouseChangeEvent.Invoke(this, args);
}
}
/// <summary>
/// Parses event and builds event args.
/// </summary>
/// <param name="wParam">Type of event.</param>
/// <param name="mouse">Mouse event properties.</param>
/// <returns>Strongly typed event info.</returns>
private MouseChangeEventArgs BuildEventArgs(WindowsMessages wParam, MouseLowLevelHookStruct mouse)
{
var args = new MouseChangeEventArgs()
{
Button = ButtonSource.Unknown,
ButtonDirection = ButtonChangeDirection.Unknown,
DeltaPosition = WindowsPoint.Invalid,
EventType = MouseEventType.Unknown,
NewPosition = WindowsPoint.Invalid,
Scroll = ScrollSource.Unknown,
ScrollDirection = ScrollChangeDirection.Unknown,
};
if (wParam == WindowsMessages.MOUSEWHEEL)
{
args.EventType = MouseEventType.Scroll;
args.Scroll = ScrollSource.VerticalScrollWheel;
if (mouse.mouseData > 0)
{
args.ScrollDirection = ScrollChangeDirection.Up;
}
else
{
args.ScrollDirection = ScrollChangeDirection.Down;
}
}
else if (wParam == WindowsMessages.MOUSEHWHEEL)
{
args.EventType = MouseEventType.Scroll;
args.Scroll = ScrollSource.HorizontalScrollWheel;
if (mouse.mouseData > 0)
{
args.ScrollDirection = ScrollChangeDirection.Up;
}
else
{
args.ScrollDirection = ScrollChangeDirection.Down;
}
}
else if (wParam == WindowsMessages.MOUSEMOVE)
{
args.EventType = MouseEventType.Move;
args.DeltaPosition = _previousePosition.Delta(mouse.pt);
_previousePosition = mouse.pt;
args.NewPosition = new WindowsPoint(mouse.pt.X, mouse.pt.Y);
}
else if (wParam == WindowsMessages.LBUTTONDOWN)
{
args.EventType = MouseEventType.Button;
args.Button = ButtonSource.LeftButton;
args.ButtonDirection = ButtonChangeDirection.Down;
}
else if (wParam == WindowsMessages.LBUTTONUP)
{
args.EventType = MouseEventType.Button;
args.Button = ButtonSource.LeftButton;
args.ButtonDirection = ButtonChangeDirection.Up;
}
else if (wParam == WindowsMessages.RBUTTONDOWN)
{
args.EventType = MouseEventType.Button;
args.Button = ButtonSource.RightButton;
args.ButtonDirection = ButtonChangeDirection.Down;
}
else if (wParam == WindowsMessages.RBUTTONUP)
{
args.EventType = MouseEventType.Button;
args.Button = ButtonSource.RightButton;
args.ButtonDirection = ButtonChangeDirection.Up;
}
else if (wParam == WindowsMessages.MBUTTONDOWN)
{
args.EventType = MouseEventType.Button;
args.Button = ButtonSource.MiddleButton;
args.ButtonDirection = ButtonChangeDirection.Down;
}
else if (wParam == WindowsMessages.MBUTTONUP)
{
args.EventType = MouseEventType.Button;
args.Button = ButtonSource.MiddleButton;
args.ButtonDirection = ButtonChangeDirection.Up;
}
else if (wParam == WindowsMessages.XBUTTONDOWN)
{
args.EventType = MouseEventType.Button;
args.ButtonDirection = ButtonChangeDirection.Down;
if ((mouse.flags & 0x01) > 0 && (mouse.mouseData & 0x10000) > 0)
{
args.Button = ButtonSource.Mouse4;
}
else if ((mouse.flags & 0x01) > 0 && (mouse.mouseData & 0x20000) > 0)
{
args.Button = ButtonSource.Mouse5;
}
}
else if (wParam == WindowsMessages.XBUTTONUP)
{
args.EventType = MouseEventType.Button;
args.ButtonDirection = ButtonChangeDirection.Up;
if ((mouse.flags & 0x01) > 0 && (mouse.mouseData & 0x10000) > 0)
{
args.Button = ButtonSource.Mouse4;
}
else if ((mouse.flags & 0x01) > 0 && (mouse.mouseData & 0x20000) > 0)
{
args.Button = ButtonSource.Mouse5;
}
}
return(args);
}