WPF用户控件库 嵌入外部(VLC)exe

综合网上资源完成的本身的第一篇博客ide

------------------------------------------------------------------------spa

网上相似的贴子挺多的,因为状况不太同样。网上相关帖子都是在 MainWindow 嵌入。我须要在原有客户端上开发新的插件即用户控件库实现嵌入外部exe。插件

主要问题:获取不到窗口句柄。code

 

一、利用系统API实现嵌入。对象

1         [DllImport("user32.dll", SetLastError = true)] 2         public static extern long SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
3 
4         [DllImport("user32.dll")] 5         public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);

二、当时在获取页面(用户控件库)的句柄问题上碰壁,主要思路是在页面上加Border、Grid等相似的容器控件。而后可经过程序集“PresentationCore”里的方法获取。blog

但须要注意的是,不能在页面加载过程当中获取句柄。可在button的click事件触发、容器控件的load事件触发、、、事件

 1 using System;  2 using System.Diagnostics;  3 using System.Windows;  4 using System.Windows.Interop;  5 using System.Reflection;  6 using System.IO;  7 
 8 namespace AlarmCenter.Addin.RunVLC  9 { 10     /// <summary>
11     /// HomePage.xaml 的交互逻辑 12     /// </summary>
13     public partial class HomePage 14  { 15         string RootPath; 16         //定义变量
17         private IntPtr prsmwh;//外部exe文件运行句柄
18         private Process process;//外部exe文件对象
19         public HomePage() 20  { 21  InitializeComponent(); 22             RootPath = AlarmCenter.Core.General.GetApplicationRootPath();//获取相对可执行文件路径
23  } 24 
25         public void RunVLC() 26  { 27             //获取当前窗口句柄
28             IntPtr handle = ((HwndSource)PresentationSource.FromVisual(bd_test)).Handle; 29 
30             string path = null; 31             var currentAssembly = Assembly.GetEntryAssembly(); 32             var currentDirectory = new FileInfo(currentAssembly.Location).DirectoryName; 33             if (currentDirectory == null) return; 34             //初始化配置,指定可执行文件路径
35             if (AssemblyName.GetAssemblyName(currentAssembly.Location).ProcessorArchitecture == ProcessorArchitecture.X86) 36                 path = RootPath + @"\bin\VLCPlayerSDK\libvlc_x86\vlc.exe"; 37             else
38                 path = RootPath + @"\bin\VLCPlayerSDK\libvlc_x64\vlc.exe"; 39 
40             process = Process.Start(path, RootPath + "\\bin\\宣传片\\test.mkv -f --no-video-title-show --repeat --no-interact --video-on-top --mouse-hide-timeout=1"); 41             prsmwh = process.MainWindowHandle; 42             while (prsmwh == IntPtr.Zero) 43  { 44                 prsmwh = process.MainWindowHandle; 45  } 46             //设置父窗口
47  SDK.SetParent(prsmwh, handle); 48             SDK.ShowWindowAsync(prsmwh, 3);//子窗口最大化 
49  } 50 
51         public override void Dispose() 52  { 53             process?.Kill(); 54             base.Dispose(); 55  } 56 
57         private void Bd_test_Loaded(object sender, RoutedEventArgs e) 58  { 59  RunVLC(); 60  } 61  } 62 }
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