WPF：最小化状态 System.Windows.Window

Question

如何知道 System.Windows.Window 在最小化之前是在 WindowState.Normal 还是 WindowState.Maximized？

Answer 1

除非您自己跟踪之前的状态，否则您不会这样做：

private WindowState _previousState = WindowState.Normal;
private void MainWindow_StateChanged(object sender, EventArgs e)
{
    if (WindowState == WindowState.Minimized)
    {
        if (_previousState == WindowState.Maximized)
        {
            MessageBox.Show("Window was in maximized state before being minimized");
        }
        else
        {
            MessageBox.Show("Window was in normal state before being minimized");
        }
    }
    _previousState = WindowState;
}

恐怕没有"PreviousWindowState"属性可用。