C# 如何为 Windows 7 编写进度条以在任务栏上进行自我更新？
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How do I code a progress bar for Windows 7 to also update itself on the taskbar?
提问by Goyuix
Windows 7 has an AWESOME new feature that applications can report the progress of the current activity through the status bar. For example, when copying file(s) using Windows Explorer, a progress bar is layered on top of the application icon in the task bar and the progress is shown as it updates.
Windows 7 有一个很棒的新功能，应用程序可以通过状态栏报告当前活动的进度。例如，当使用 Windows 资源管理器复制文件时，进度条位于任务栏中的应用程序图标的顶部，并在更新时显示进度。
What is the API for exposing the progress bar? Is there MSDN documentation on it?
暴露进度条的API是什么？有关于它的 MSDN 文档吗？
采纳答案by sigint
There's a good article in MSDN magazine about the new taskbar APIs. And yes, the feature is awesome :-)
MSDN 杂志中有一篇关于新任务栏 API的好文章。是的，这个功能很棒:-)
Essentially, it's all about implementing IFileOperation. There's a good article about using it in managed code here.
从本质上讲，这一切都与实现IFileOperation. 有一个关于在托管代码中使用它的好文章在这里。
回答by Wyatt O'Day
I've written an article about implementing the Windows 7 Taskbar progress API in C# (see: Windows 7 Taskbar Progress Bar with C# and .NET). The control is open source (BSD) and has example projects for C# and VB.NET.
我写了一篇关于在 C# 中实现 Windows 7 任务栏进度 API 的文章（请参阅：Windows 7 Taskbar Progress Bar with C# and .NET）。该控件是开源的 (BSD)，并具有 C# 和 VB.NET 的示例项目。
This way you don't have to convert the C++ code from scratch.
这样您就不必从头开始转换 C++ 代码。
回答by Keeron
If you plan to use other Windows 7 Taskbar features, another approach would be to use the library from Microsoft: Windows API Code Pack for .NET Framework which is no longer available at the old link, but can be found on nuget.
如果您计划使用其他 Windows 7 任务栏功能，另一种方法是使用 Microsoft 的库：Windows API Code Pack for .NET Framework，旧链接不再提供，但可以在nuget上找到。
回答by Wilka
For below .NET 4, or WinForms in any .NET version
对于低于 .NET 4 或任何 .NET 版本的 WinForms
Using the Windows API Code Packfrom Microsoft (as Keeron mentioned), it's really simple. You just need to use the TaskbarManager. E.g.
使用Microsoft的Windows API 代码包（正如 Keeron 提到的），这真的很简单。您只需要使用TaskbarManager. 例如
To start the progress:
开始进度：
TaskbarManager.Instance.SetProgressState(TaskbarProgressBarState.Normal);
To update the progress:
要更新进度：
TaskbarManager.Instance.SetProgressValue(currentValue, maxProgressValue);
And when when you're done, to end the progress:
完成后，结束进度：
TaskbarManager.Instance.SetProgressState(TaskbarProgressBarState.NoProgress);
There is more you can do, but that should get you started and might be all you need.
您还可以做更多的事情，但这应该能让您入门，并且可能就是您所需要的。
For .NET 4 and above with WPF
对于 .NET 4 及更高版本的 WPF
You can use System.Windows.Shell.TaskbarItemInfo. E.g. in the Xaml for your main window, you'll need to add:
您可以使用System.Windows.Shell.TaskbarItemInfo。例如，在主窗口的 Xaml 中，您需要添加：
<Window.TaskbarItemInfo>
<TaskbarItemInfo x:Name="taskBarItemInfo" />
</Window.TaskbarItemInfo>
Then to update the progress, you would do something like:
然后要更新进度，您可以执行以下操作：
taskBarItemInfo.ProgressState = TaskbarItemProgressState.Normal;
for (int i = 0; i < 100; i++)
{
taskBarItemInfo.ProgressValue = i / 100.0;
Thread.Sleep(50); // whatever the 'work' really is
}
taskBarItemInfo.ProgressState = TaskbarItemProgressState.None;
Don't forget that if you're doing the 'work' on a background thread (which is probably a good idea for long running tasks), you will need to switch back to the UI thread to update the taskbar.
不要忘记，如果您在后台线程上执行“工作”（这对于长时间运行的任务可能是一个好主意），您将需要切换回 UI 线程来更新任务栏。
