/// <summary>
/// Obtains the next character or function key pressed by the user.
/// The pressed key is optionally displayed in the console window.
/// </summary>
/// <param name="intercept">Determines whether to display the pressed key in the console window.
/// true to not display the pressed key; otherwise, false.</param>
/// <returns>A ConsoleKeyInfo object that describes the ConsoleKey constant and Unicode
/// character, if any, that correspond to the pressed console key.></returns>
public ConsoleKeyInfo ReadKey(bool intercept)
{
if (disposed)
{
throw new ObjectDisposedException(this.ToString());
}
// @TODO: How to I echo the key?
ConsoleInputEventInfo[] buff = new ConsoleInputEventInfo[1];
int numEvents = 0;
bool isGood = false;
ConsoleKeyEventInfo keyEvent = new ConsoleKeyEventInfo();
do
{
if (!WinCon.ReadConsoleInput(Handle, buff, 1, ref numEvents))
{
throw new IOException("Error reading console.", Marshal.GetLastWin32Error());
}
// Make sure it's a key down event and that the key is
// one of the virtual key codes....
if (buff[0].EventType == ConsoleInputEventType.KeyEvent)
{
keyEvent = buff[0].KeyEvent;
isGood = keyEvent.KeyDown && (Enum.GetName(typeof(ConsoleKey), (ConsoleKey)keyEvent.VirtualKeyCode) != null);
}
} while (!isGood);
// Create ConsoleKeyInfo from key event
return(new ConsoleKeyInfo(keyEvent.UnicodeChar,
(ConsoleKey)keyEvent.VirtualKeyCode,
(keyEvent.ControlKeyState & ConsoleControlKeyState.ShiftPressed) != 0,
(keyEvent.ControlKeyState & (ConsoleControlKeyState.RightAltPressed | ConsoleControlKeyState.LeftAltPressed)) != 0,
(keyEvent.ControlKeyState & (ConsoleControlKeyState.RightCtrlPressed | ConsoleControlKeyState.LeftCtrlPressed)) != 0));
}
public void WriteEvents(IList <EventArgs> events, int nEvents)
{
// convert EventArgs to ConsoleInputEventInfo structures.
var consoleEvents = new ConsoleInputEventInfo[nEvents];
for (int i = 0; i < nEvents; i++)
{
var e = events[i];
var ce = new ConsoleInputEventInfo();
if (e is ConsoleKeyEventArgs)
{
ConsoleKeyEventArgs eKey = e as ConsoleKeyEventArgs;
ce.EventType = ConsoleInputEventType.KeyEvent;
ce.KeyEvent.UnicodeChar = eKey.KeyChar;
ce.KeyEvent.ControlKeyState = eKey.ControlKeyState;
ce.KeyEvent.KeyDown = eKey.KeyDown;
ce.KeyEvent.RepeatCount = (short)eKey.RepeatCount;
ce.KeyEvent.VirtualKeyCode = eKey.Key;
}
else if (e is ConsoleMouseEventArgs)
{
ConsoleMouseEventArgs eMouse = e as ConsoleMouseEventArgs;
ce.EventType = ConsoleInputEventType.MouseEvent;
ce.MouseEvent.ButtonState = eMouse.ButtonState;
ce.MouseEvent.ControlKeyState = eMouse.KeyState;
ce.MouseEvent.EventFlags = eMouse.EventFlags;
ce.MouseEvent.MousePosition = new Coord((short)eMouse.X, (short)eMouse.Y);
}
else if (e is ConsoleFocusEventArgs)
{
ConsoleFocusEventArgs eFocus = e as ConsoleFocusEventArgs;
ce.EventType = ConsoleInputEventType.FocusEvent;
ce.FocusEvent.SetFocus = eFocus.SetFocus;
}
else if (e is ConsoleMenuEventArgs)
{
ConsoleMenuEventArgs eMenu = e as ConsoleMenuEventArgs;
ce.EventType = ConsoleInputEventType.MenuEvent;
ce.MenuEvent.CommandId = eMenu.CommandId;
}
else if (e is ConsoleWindowBufferSizeEventArgs)
{
ConsoleWindowBufferSizeEventArgs eWindow = e as ConsoleWindowBufferSizeEventArgs;
ce.EventType = ConsoleInputEventType.WindowBufferSizeEvent;
ce.WindowBufferSizeEvent.Size = new Coord((short)eWindow.X, (short)eWindow.Y);
}
else
{
throw new ApplicationException("Unknown event type.");
}
consoleEvents[i] = ce;
}
WriteEvents(consoleEvents, consoleEvents.Length);
}
/// <summary>
///
/// </summary>
/// <param name="nEvents"></param>
/// <returns></returns>
public ConsoleInputEventInfo[] ReadEvents(int nEvents)
{
if (disposed)
{
throw new ObjectDisposedException(this.ToString());
}
ConsoleInputEventInfo[] events = new ConsoleInputEventInfo[nEvents];
int eventsRead = 0;
if (!WinCon.ReadConsoleInput(Handle, events, nEvents, ref eventsRead))
{
throw new System.IO.IOException("Unable to read events.", Marshal.GetLastWin32Error());
}
if (eventsRead < nEvents)
{
// create a new array that contains just the events that were read
ConsoleInputEventInfo[] newBuff = new ConsoleInputEventInfo[eventsRead];
Array.Copy(events, newBuff, eventsRead);
events = newBuff;
}
return(events);
}
/// <summary>
///
/// </summary>
/// <param name="Events"></param>
/// <param name="nEvents"></param>
/// <returns></returns>
private int WriteEvents(ConsoleInputEventInfo[] Events, int nEvents)
{
if (disposed)
{
throw new ObjectDisposedException(this.ToString());
}
if (nEvents > Events.Length)
{
throw new ArgumentException("Count cannot be larger than array size.", "nEvents");
}
int eventsWritten = 0;
if (!WinCon.WriteConsoleInput(Handle, Events, nEvents, ref eventsWritten))
{
throw new IOException("Unable to write events.", Marshal.GetLastWin32Error());
}
return eventsWritten;
}
public void WriteEvents(IList<EventArgs> events, int nEvents)
{
// convert EventArgs to ConsoleInputEventInfo structures.
var consoleEvents = new ConsoleInputEventInfo[nEvents];
for (int i = 0; i < nEvents; i++)
{
var e = events[i];
var ce = new ConsoleInputEventInfo();
if (e is ConsoleKeyEventArgs)
{
ConsoleKeyEventArgs eKey = e as ConsoleKeyEventArgs;
ce.EventType = ConsoleInputEventType.KeyEvent;
ce.KeyEvent.UnicodeChar = eKey.KeyChar;
ce.KeyEvent.ControlKeyState = eKey.ControlKeyState;
ce.KeyEvent.KeyDown = eKey.KeyDown;
ce.KeyEvent.RepeatCount = (short)eKey.RepeatCount;
ce.KeyEvent.VirtualKeyCode = eKey.Key;
}
else if (e is ConsoleMouseEventArgs)
{
ConsoleMouseEventArgs eMouse = e as ConsoleMouseEventArgs;
ce.EventType = ConsoleInputEventType.MouseEvent;
ce.MouseEvent.ButtonState = eMouse.ButtonState;
ce.MouseEvent.ControlKeyState = eMouse.KeyState;
ce.MouseEvent.EventFlags = eMouse.EventFlags;
ce.MouseEvent.MousePosition = new Coord((short)eMouse.X, (short)eMouse.Y);
}
else if (e is ConsoleFocusEventArgs)
{
ConsoleFocusEventArgs eFocus = e as ConsoleFocusEventArgs;
ce.EventType = ConsoleInputEventType.FocusEvent;
ce.FocusEvent.SetFocus = eFocus.SetFocus;
}
else if (e is ConsoleMenuEventArgs)
{
ConsoleMenuEventArgs eMenu = e as ConsoleMenuEventArgs;
ce.EventType = ConsoleInputEventType.MenuEvent;
ce.MenuEvent.CommandId = eMenu.CommandId;
}
else if (e is ConsoleWindowBufferSizeEventArgs)
{
ConsoleWindowBufferSizeEventArgs eWindow = e as ConsoleWindowBufferSizeEventArgs;
ce.EventType = ConsoleInputEventType.WindowBufferSizeEvent;
ce.WindowBufferSizeEvent.Size = new Coord((short)eWindow.X, (short)eWindow.Y);
}
else
{
throw new ApplicationException("Unknown event type.");
}
consoleEvents[i] = ce;
}
WriteEvents(consoleEvents, consoleEvents.Length);
}
/// <summary>
/// Obtains the next character or function key pressed by the user.
/// The pressed key is optionally displayed in the console window.
/// </summary>
/// <param name="intercept">Determines whether to display the pressed key in the console window.
/// true to not display the pressed key; otherwise, false.</param>
/// <returns>A ConsoleKeyInfo object that describes the ConsoleKey constant and Unicode
/// character, if any, that correspond to the pressed console key.></returns>
public ConsoleKeyInfo ReadKey(bool intercept)
{
if (disposed)
{
throw new ObjectDisposedException(this.ToString());
}
// @TODO: How to I echo the key?
ConsoleInputEventInfo[] buff = new ConsoleInputEventInfo[1];
int numEvents = 0;
bool isGood = false;
ConsoleKeyEventInfo keyEvent = new ConsoleKeyEventInfo();
do
{
if (!WinCon.ReadConsoleInput(Handle, buff, 1, ref numEvents))
{
throw new IOException("Error reading console.", Marshal.GetLastWin32Error());
}
// Make sure it's a key down event and that the key is
// one of the virtual key codes....
if (buff[0].EventType == ConsoleInputEventType.KeyEvent)
{
keyEvent = buff[0].KeyEvent;
isGood = keyEvent.KeyDown && (Enum.GetName(typeof(ConsoleKey), (ConsoleKey)keyEvent.VirtualKeyCode) != null);
}
} while (!isGood);
// Create ConsoleKeyInfo from key event
return new ConsoleKeyInfo(keyEvent.UnicodeChar,
(ConsoleKey)keyEvent.VirtualKeyCode,
(keyEvent.ControlKeyState & ConsoleControlKeyState.ShiftPressed) != 0,
(keyEvent.ControlKeyState & (ConsoleControlKeyState.RightAltPressed | ConsoleControlKeyState.LeftAltPressed)) != 0,
(keyEvent.ControlKeyState & (ConsoleControlKeyState.RightCtrlPressed | ConsoleControlKeyState.LeftCtrlPressed)) != 0);
}
/// <summary>
///
/// </summary>
/// <param name="nEvents"></param>
/// <returns></returns>
public ConsoleInputEventInfo[] ReadEvents(int nEvents)
{
if (disposed)
{
throw new ObjectDisposedException(this.ToString());
}
ConsoleInputEventInfo[] events = new ConsoleInputEventInfo[nEvents];
int eventsRead = 0;
if (!WinCon.ReadConsoleInput(Handle, events, nEvents, ref eventsRead))
{
throw new System.IO.IOException("Unable to read events.", Marshal.GetLastWin32Error());
}
if (eventsRead < nEvents)
{
// create a new array that contains just the events that were read
ConsoleInputEventInfo[] newBuff = new ConsoleInputEventInfo[eventsRead];
Array.Copy(events, newBuff, eventsRead);
events = newBuff;
}
return events;
}
