} // func ConvertEvent
public IEnumerable <EventArgs> ReadInputEvents(int maxCount = -1)
{
if (maxCount < 0)
{
maxCount = NumberOfEvents;
}
var buffer = new ConsoleInputRecord[1024];
while (maxCount > 0)
{
var readLength = Math.Max(maxCount, buffer.Length);
if (!ReadConsoleInput(DangerousGetHandle, buffer, unchecked ((uint)readLength), out var readed))
{
throw new Win32Exception();
}
// return events
for (var i = 0; i < readed; i++)
{
if (TryConvertEvent(ref buffer[i], out var ev, out var repeatCount))
{
for (var j = 0; j < repeatCount; j++)
{
yield return(ev);
}
}
}
maxCount -= unchecked ((int)readed);
}
} // proc ReadInputEvents
private static bool TryConvertEvent(ref ConsoleInputRecord r, out EventArgs ev, out int repeatCount)
{
switch (r.EventType)
{
case EventType.KeyEvent:
{
var keyCode = (ConsoleKey)r.KeyEvent.wVirtualKeyCode;
var keyModifiers = (ConsoleKeyModifiers)r.KeyEvent.dwControlKeyState;
if (r.KeyEvent.bKeyDown)
{
ev = new ConsoleKeyDownEventArgs(keyCode, keyModifiers, r.KeyEvent.uChar);
}
else
{
ev = new ConsoleKeyUpEventArgs(keyCode, keyModifiers, r.KeyEvent.uChar);
}
repeatCount = r.KeyEvent.wRepeatCount;
}
return(true);
case EventType.MouseEvent:
{
var buttonState = (ConsoleMouseButtonState)(r.MouseEvent.dwButtonState & 0xFFFF);
var keyModifiers = (ConsoleKeyModifiers)r.MouseEvent.dwControlKeyState;
switch (r.MouseEvent.dwEventFlags)
{
case 0x0000: // Click/Released
ev = new ConsoleMouseEventArgs(buttonState, keyModifiers, r.MouseEvent.dwMousePosition.X, r.MouseEvent.dwMousePosition.Y);
repeatCount = 1;
return(true);
case 0x0001: // Moved
ev = new ConsoleMouseMovedEventArgs(buttonState, keyModifiers, r.MouseEvent.dwMousePosition.X, r.MouseEvent.dwMousePosition.Y);
repeatCount = 1;
return(true);
case 0x0004: // Wheel
ev = new ConsoleMouseWheelEventArgs(buttonState, keyModifiers, r.MouseEvent.dwMousePosition.X, r.MouseEvent.dwMousePosition.Y, ConsoleWheelOrientation.Horizontal, unchecked ((int)(r.MouseEvent.dwButtonState >> 16)));
repeatCount = 1;
return(true);
case 0x0008: // HWheel
ev = new ConsoleMouseWheelEventArgs(buttonState, keyModifiers, r.MouseEvent.dwMousePosition.X, r.MouseEvent.dwMousePosition.Y, ConsoleWheelOrientation.Horizontal, unchecked ((int)(r.MouseEvent.dwButtonState >> 16)));
repeatCount = 1;
return(true);
default: // Moved
ev = EventArgs.Empty;
repeatCount = 0;
return(false);
}
}
case EventType.MenuEvent:
ev = new ConsoleMenuEventArgs(r.MenuEvent.dwCommandId);
repeatCount = 1;
return(true);
case EventType.WindowBufferSizeEvent:
ev = new ConsoleBufferSizeEventArgs(r.WindowBufferSizeEvent.dwSize.X, r.WindowBufferSizeEvent.dwSize.Y);
repeatCount = 1;
return(true);
case EventType.FocusEvent:
ev = r.FocusEvent.bSetFocus
? (EventArgs)ConsoleSetFocusEventArgs.Default
: (EventArgs)ConsoleLostFocusEventArgs.Default;
repeatCount = 1;
return(true);
default:
ev = EventArgs.Empty;
repeatCount = 0;
return(false);
}
} // func ConvertEvent