如何在WPF窗口中显示屏幕保护程序的预览
本文关键字:程序 屏幕保护 显示 WPF 窗口 | 更新日期: 2023-09-27 18:29:41
我希望能够在WPF窗口中显示屏幕保护程序的预览。(使用容器或控件或…)我知道Windows本身会将"/p"参数传递给屏幕保护程序以获得预览。但是如何在WPF应用程序中显示预览呢?我应该获得它的句柄并将它的父对象更改为我的容器o控件吗?怎样
您需要使用Windows.Forms互操作,因为屏幕保护程序需要窗口句柄(HWND),而在WPF中,只有顶级窗口才有它们。
主窗口.xaml
<Window x:Class="So18547663WpfScreenSaverPreview.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:forms="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"
Title="Screen Saver Preview" Height="350" Width="525"
Loaded="MainWindow_OnLoaded" Closed="MainWindow_OnClosed"
SizeToContent="WidthAndHeight">
<StackPanel Orientation="Vertical" Margin="8">
<TextBlock Text="Preview"/>
<WindowsFormsHost x:Name="host" Width="320" Height="240">
<forms:Control Width="320" Height="240"/>
</WindowsFormsHost>
</StackPanel>
</Window>
主窗口.xaml.cs
using System;
using System.Diagnostics;
using System.Windows;
namespace So18547663WpfScreenSaverPreview
{
public partial class MainWindow
{
private Process saver;
public MainWindow ()
{
InitializeComponent();
}
private void MainWindow_OnLoaded (object sender, RoutedEventArgs e)
{
saver = Process.Start(new ProcessStartInfo {
FileName = "Bubbles.scr",
Arguments = "/p " + host.Child.Handle,
UseShellExecute = false,
});
}
private void MainWindow_OnClosed (object sender, EventArgs e)
{
// Optional. Screen savers should close themselves
// when the parent window is destroyed.
saver.Kill();
}
}
}
程序集参考
WindowsFormsIntegration
System.Windows.Forms
相关链接
- 演练:在WPF中托管Windows窗体控件
- 使用C#创建屏幕保护程序(描述命令行参数)