/// <summary>
/// Switch to the main running instance and optionally send data to the main instance.
/// </summary>
/// <param name="args">The command line arguments to pass.</param>
public void SwitchTo(params string[] args)
{
var process = GetOtherInstance();
if (process == null)
throw new InvalidOperationException("Can't switch to other instance. The current instance is the first instance.");
// Get the main window and ensure it's running in foreground.
var mainWindow = new Window(process.MainWindowHandle);
if (mainWindow.IsMinimized)
mainWindow.Show(ShowWindow.Restore);
mainWindow.SetToForeground();
SendData(args, mainWindow.Handle);
}
/// <summary>
/// Returns an enumerable of child windows, filtered by specified predicate match.
/// </summary>
/// <param name="parentWindow">The parent window.</param>
/// <param name="match">The predicate to filter by.</param>
public static IEnumerable<Window> GetChildWindows(Window parentWindow, Func<Window, bool> match = null)
{
if (!parentWindow.Exists) return new Window[0];
var windows = new List<Window>();
NativeMethods.EnumThreadWindowsCallback enumWindows = (hwnd, lParam) =>
{
var window = new Window(hwnd);
if (match == null || match(window)) windows.Add(window);
return true;
};
UnsafeNativeMethods.EnumChildWindows(new HandleRef(parentWindow, parentWindow.Handle), enumWindows, IntPtr.Zero);
return windows;
}
/// <summary>
/// Determines whether the specified object is equal to the current object.
/// </summary>
/// <param name="other">The object to compare with the current object. </param>
/// <returns>
/// true if the specified object is equal to the current object; otherwise, false.
/// </returns>
protected bool Equals(Window other)
{
return Handle.Equals(other.Handle);
}
/// <summary>
/// Returns an enumerable of windows, filtered by specified predicate match.
/// </summary>
/// <param name="match">The predicate to filter by.</param>
public static IEnumerable<Window> GetWindows(Func<Window, bool> match = null)
{
var windows = new List<Window>();
NativeMethods.EnumThreadWindowsCallback enumWindows = (hwnd, lParam) =>
{
var window = new Window(hwnd);
if (match == null || match(window)) windows.Add(window);
return true;
};
UnsafeNativeMethods.EnumWindows(enumWindows, IntPtr.Zero);
return windows;
}
