//
Check for Mouse Move Events
if
(lastX!=Control.MousePosition.X ||
lastY!=Control.MousePosition.Y)
{
lastX = Control.MousePosition.X;
lastY = Control.MousePosition.Y;
MouseMoveEventArgs mouseMoveInfo = new
MouseMoveEventArgs(lastX,lastY);
if
(OnMouseMove!=null)
{
OnMouseMove(this,mouseMoveInfo);
}
}
Once we’ve got Mouse
movement out of the way, let’s move on to mouse buttons. This is done in much
the same way, first we have our EventArgs object (With an enumerated type to
help tell what the user is doing to the button)–
public enum MouseButtonState {Pressed,Released}
public class MouseButtonEventArgs : EventArgs
{
public
MouseButtonEventArgs(MouseButtons
Button,MouseButtonState buttonState)
{
this.Button
= Button;
this.buttonState
= buttonState;
}
public readonly MouseButtons Button;
public readonly MouseButtonState buttonState;
}
Then we add our delegate,
event, and any state variables required –
private MouseButtons
lastButton = MouseButtons.None;
public delegate void MouseButtonHandler
(object inputListener,
MouseButtonEventArgs mouseButtonInfo);
public event MouseButtonHandler OnMouseButton;
Then the implementation of
the polling mechanism
if
(lastButton!=Control.MouseButtons)
{
MouseButtonEventArgs mouseButtonInfo;
if
(Control.MouseButtons==MouseButtons.None)
{
mouseButtonInfo = new
MouseButtonEventArgs(
lastButton, MouseButtonState.Released);
if
(OnMouseButton!=null)
{
OnMouseButton( this,
mouseButtonInfo);
}
}
else
{
mouseButtonInfo = new
MouseButtonEventArgs(
Control.MouseButtons,
MouseButtonState.Pressed);
if
(OnMouseButton!=null)
{
OnMouseButton(
this,
mouseButtonInfo);
}
}
lastButton=Control.MouseButtons;
}
Finally, we move on to key
press detection. Once again, we define our EventArgs variable
public class KeyPressEventArgs : EventArgs
{
public KeyPressEventArgs(
Keys ModifierKeys,
int KeyCode)
{
this.ModifierKeys=
ModifierKeys;
this.KeyCode
= KeyCode;
}
public readonly Keys ModifierKeys;
public readonly int KeyCode;
}
We must declare our Event
and Delegate as in the other two cases, however, in this instance, instead of
using state variables, we declare our Win32 API call.
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