接收托管代码中 Fortran 广播的事件通知
我有一个 fortran（非托管代码）dll 作为计算引擎，还有一个 C# 表单作为 GUI。
现在，fortran中的计算很长，所以为了不让用户感到厌烦，我决定使用Asynch命令来创建进度条。 Fortran DLL 将负责在计算进行时将消息放入进度栏中。
知道如何做到这一点吗？
I have a fortran (unmanaged code) dll as the calculation engine, and a C# form as the GUI.
Now, the calculation in fortran is long, so in order not to bore the users, I decided to use Asynch command to create a progress bar. The fortran dll would be responsible for putting messages in the progress bar as the calculation proceeds.
Any idea how this can be done?
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您必须在 Fortran dll 中实现另一个函数来报告数字进度。例如：“GetCalculationProgress”返回两个整数（当前迭代和迭代总数）。您可以在 C# 应用程序的另一个线程中定期调用该函数并读取这些值。在 Fortran 中，您可能必须使用全局变量来跟踪这些变量。
此外，这里有一个解释回调方法的链接：
http://xtechnotes.blogspot.com/2008/07/callback-to-c-from-unmanagement-fortran.html
You have to implement anoter function in Fortran dll that reports progress in numbers. For instance: "GetCalculationProgress" that returns two integers (current iteration and total number of iterations). You call that function periodically in another thread in your C# app and read those values. In Fortran you might have to use global variables to track those.
Besides, Here is a link that explains callback method:
http://xtechnotes.blogspot.com/2008/07/callback-to-c-from-unmanaged-fortran.html
单一责任：UI 应该负责显示进度信息，无论是进度条还是其他视觉效果。 Fortran 不应该知道信息是如何显示的，而它只是发出“事件”，说诸如“刚刚开始”、“55%”、“几乎完成”和“哎呀，不起作用。
事件是如何发生的”通过了吗？您可能需要某种“缓冲”技术，也许使用（命名）管道，或者 Fortran 可以使用 C 库，所以我想一旦您选择了一种通信技术，如果 Fortran 不直接支持您。可以从编写一些 C 语言开始，然后从 Fortran 中获得它。
Single responsibility: The UI shoul be responsible for display of the progress information, be it a progress bar or other visual effect. The Fortran should not be aware of how the information is displayed, rather it just emits "events" saying thinggs such "just started", "55%", "almost done" and "whoops that didn't work.
How do the events get passed? You probably need some kind of "buffering" tecnhology, perhaps using (named) pipes, or a message queue technology. Fortran can use C libraries so I guess that once you select a communication technology if that's not supported by Fortran directly you can start by writing a bit of C and then get at that from Fortran.