如何正确启动屏幕保护程序的配置视图？
我对任何提示和帮助感到高兴。提前致谢。屏保是用C＃编写的.NET 4.5.2，因为IDE使用的是Visual Studio 2015 Professional。当我从cmd（'screensaver.scr / c'）启动屏幕保护程序时，将显示配置视图。如果让Windows启动配置，则不会显示该视图。我让您留在代码下方。
事件commandLineHandler.ConfigViewStartHandler启动configview。
app.xaml.cs：
public partial class App
{
/// <summary>
/// Constructor starts Managed Extensibility Framework. This allows
/// inversion of control. Also startup event is handled to
/// instantiate MainWindow.
/// </summary>
public App()
{
Init_App();
}
private CommandLineHandler commandLineHandler;
private MainWindowViewModel mainWindowViewModel;
private MainWindow mainWindow;
private MainWindow2 mainWindow2;
private MainWindow3 mainWindow3;
private ConfigView configView;
private PreviewHandler previewHandler;
#region methods
/// <summary>
/// Initializes managed extensibility framework, varies and views
/// inside app.
/// </summary>
private void Init_App()
{
// Loads and initializes Managed Extensibility Framework.
ManagedExtensibilityHandler.Initialize(this);
ManagedExtensibilityHandler.ComposeParts(this);
commandLineHandler = new CommandLineHandler();
// Fetches triggered events.
commandLineHandler.StartScreensaverHandler += StartScreensaver;
commandLineHandler.StartPreviewHandler += StartScreensaverPreview;
commandLineHandler.ConfigViewStartHandler += ShowConfigView;
DispatcherUnhandledException += OnDispatcherUnhandledException;
// Initializes varies.
mainWindowViewModel = new MainWindowViewModel();
mainWindow = new MainWindow(mainWindowViewModel);
mainWindow2 = new MainWindow2(mainWindowViewModel);
mainWindow3 = new MainWindow3(mainWindowViewModel);
previewHandler = new PreviewHandler();
configView = new ConfigView();
}
/// <summary>
/// Helps to understand start and troubling exceptions.
/// Shows a message box with the exception message and stack trace.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">DispatcherUnhandledExceptionEventArgs</param>
private void OnDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
{
MessageBox.Show($"{e.Exception.Message}\n{e.Exception.StackTrace}\n{e.Exception.Source}",
"Error Message",
MessageBoxButton.OK,
MessageBoxImage.Error);
Environment.Exit(1);
}
/// <summary>
/// Starts screensaver by an event.
/// </summary>
private void StartScreensaver()
{
mainWindowViewModel = new MainWindowViewModel();
previewHandler = null;
configView?.Close();
// Opens views for one until 3 connected monitors.
switch (Screen.AllScreens.Length)
{
case 1:
{
// Section for one screen.
ShowOnOneMonitor();
break;
}
case 2:
{
// Section for two screens.
ShowOnDualMonitors();
break;
}
case 3:
{
// Section for three screens.
ShowOnTrippleMonitors();
break;
}
}
}
/// <summary>
/// Compute CommandLine Args.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">StartupEventaArgs</param>
public void App_Startup(object sender, StartupEventArgs e)
{
CommandLineInputs(Environment.GetCommandLineArgs());
}
/// <summary>
/// Exit Screensaver on \a.
/// </summary>
/// <param name="commandLineArgs"></param>
private void CommandLineInputs(string[] commandLineArgs)
{
// Starts the CommandlineHandler if there are more than one
// argument.
if (commandLineArgs.Length > 1)
{
commandLineHandler.ComputeCmdArgument(commandLineArgs);
}
}
/// <summary>
/// Starts previewMainWindow of the screensaver inside a handle.
/// </summary>
/// <param name="e">StartHandleEventArgs</param>
private void StartScreensaverPreview(StartHandleEventArgs e)
{
configView?.Close();
CloseViews();
previewHandler.DoMiniPreview(e.CommandLineArgStrings, true);
}
/// <summary>
/// Shows the configuration of the screensaver and saves user changes
/// int a json-file inside user's temp directory. For example
/// C:\Users\REMY~1.MEI\AppData\Local\Temp.
/// </summary>
private void ShowConfigView()
{
CloseViews();
previewHandler = null;
configView.Show();
}
/// <summary>
/// Closes every view on displays at once.
/// </summary>
private void CloseViews()
{
mainWindow?.Close();
mainWindow2?.Close();
mainWindow3?.Close();
}
/// <summary>
/// Shows screensaver on one monitor.
/// </summary>
private void ShowOnOneMonitor()
{
// Getting screen and WorkingArea
Screen s1 = Screen.AllScreens[0];
Rectangle r1 = s1.WorkingArea;
// Position mainWindow.
mainWindow.Top = r1.Top;
mainWindow.Left = r1.Left;
// Show the view on monitor
mainWindow.Show();
}
/// <summary>
/// Shows screensaver on dual monitors setting.
/// </summary>
private void ShowOnDualMonitors()
{
// Gets the screens.
Screen s1 = Screen.AllScreens[0];
Screen s2 = Screen.AllScreens[1];
// Gets the WorkingAreas, which store positions.
Rectangle r1 = s1.WorkingArea;
Rectangle r2 = s2.WorkingArea;
// Positions mainWindow.
mainWindow.Top = r1.Top;
mainWindow.Left = r1.Left;
// Positions mainWindow2.
mainWindow2.Top = r2.Top;
mainWindow2.Left = r2.Left;
// Show views on each display.
mainWindow.Show();
mainWindow2.Show();
// mainWindow owns other views and also closes them
// on exit or events.
mainWindow2.Owner = mainWindow;
}
/// <summary>
/// Shows screensaver on tripple monitors settings.
/// </summary>
private void ShowOnTrippleMonitors()
{
// Gets screens.
Screen s1 = Screen.AllScreens[0];
Screen s2 = Screen.AllScreens[1];
Screen s3 = Screen.AllScreens[2];
// Gets WorkingsAreas.
Rectangle r1 = s1.WorkingArea;
Rectangle r2 = s2.WorkingArea;
Rectangle r3 = s3.WorkingArea;
// Position first view.
mainWindow.Top = r1.Top;
mainWindow.Left = r1.Left;
// Position second view.
mainWindow2.Top = r2.Top;
mainWindow2.Left = r2.Left;
// Position third view.
mainWindow3.Top = r3.Top;
mainWindow3.Left = r3.Left;
// Shows views on screens.
mainWindow.Show();
mainWindow2.Show();
mainWindow3.Show();
// mainWindow owns other views and also closes them
// on exit or events.
mainWindow2.Owner = mainWindow;
mainWindow3.Owner = mainWindow;
}
#endregion
}
configview.xaml.cs：
public partial class ConfigView : Window
{
private ConfigViewModel configViewModel;
/// <summary>
/// Initializes an object of a configview.
/// </summary>
public ConfigView()
{
InitializeComponent();
configViewModel = new ConfigViewModel();
DataContext = configViewModel;
}
/// <summary>
/// Changes timer delay of screensaver and stores inside a file.
/// Then cloeses the configuration view.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">RoutedEventArgs</param>
private void button_Click(object sender, RoutedEventArgs e)
{
configViewModel.ChangeTimerDelay();
Close();
}
/// <summary>
/// Closes view if cancel button is pressed.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">RoutedEventArgs</param>
private void cancelButton_Click(object sender, RoutedEventArgs e)
{
Close();
}
}
configview.xaml：
<Window x:Class="INV_Screensaver.Views.ConfigView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:INV_Screensaver.Views"
mc:Ignorable="d"
WindowStyle="ThreeDBorderWindow"
Title="Config INV-Screensaver" Height="150" Width="300">
<Grid>
<Button x:Name="cancelButton" Content="Cancel" HorizontalAlignment="Left" Height="25" Margin="24,73,0,0" VerticalAlignment="Top" Width="101" Click="cancelButton_Click"/>
<Button x:Name="button" Content="OK" HorizontalAlignment="Left" Height="25" Margin="144,73,0,0" VerticalAlignment="Top" Width="111" Click="button_Click"/>
<Label x:Name="label" Content="Timer delay:" HorizontalAlignment="Left" Height="29" Margin="24,24,0,0" VerticalAlignment="Top" Width="86"/>
<TextBox x:Name="textBoxTimerDelay" HorizontalAlignment="Left" Height="29" Margin="125,24,0,0" TextWrapping="NoWrap" Text="{Binding ConfigTimerElapsedTime}" VerticalAlignment="Top" Width="130"/>
</Grid>
</Window>
最美好的祝愿