检测在另一个应用程序中打开的消息框
我正在 VB.NET 中开发一个 Windows 服务，该服务启动一个执行某些工作的旧应用程序。该服务充当旧应用程序的包装器，允许用户自动执行手动操作。
一切都运行良好，除了旧版应用程序偶尔会显示消息框。当执行此操作时，进程将停止，直到消息框关闭。
由于该服务将在服务器上运行，因此用户不会关闭消息框。
该服务在 System.Diagnostics.Process 中启动旧应用程序。
有没有办法检测我使用 System.Diagnostics.Process 启动的进程是否已显示消息框？有没有办法通过代码关闭消息框？
I am developing a windows service, in VB.NET, that launches a legacy application that performs some work. The service acts as a wrapper around the legacy app allowing users to automate an otherwise manual operation.
Everything is working great, except occasionally the legacy app displays a messagebox. When it does this the process halts until the message box is closed.
As the service will be running on a server there will be no user to close the message box.
The service launches the legacy application in a System.Diagnostics.Process.
Is there way to detect that a message box has been displayed by a process that I have started using System.Diagnostics.Process? And is there a way to close the messagebox through code?
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我还发现 EnumChildWindows 不返回 MessageBox。但我找到了一个网站，向我展示了如何做到这一点。 http://vbcity.com/forums/t/105842.aspx
您想要调用 GetWindow 并传入 GW_ENABLEDPOPUP。它就像一个魅力。感谢斯科特·瓦莱茨科！
I also found that EnumChildWindows does not return the MessageBox. But I found a site that showed me how to do it. http://vbcity.com/forums/t/105842.aspx
You want to call GetWindow passing in GW_ENABLEDPOPUP. It worked like a charm. Thanks to Scott Waletzko!
使用
FindWindow查找应用程序，使用EnumChildWindows枚举它的所有子窗口，直到找到消息框（如果消息框不是应用程序主窗口的直接子窗口）我认为您可能必须进行递归调用）。您也许可以跳过
FindWindow调用，而使用Process的MainWindowHandle属性，但我尚未检查这是否有效。Spy++ 是查看所有这些信息的一个好工具，它可以帮助您查看有关正在运行的进程的一些信息。
Use
FindWindowto find the app, the useEnumChildWindowsto enumerate all it's childwindows until you find the messagebox (if the messagebox isn't a direct child of the main window of the app you might have to have recursive calls I think).You might be able to skip the
FindWindowcall and instead use theMainWindowHandleproperty of theProcess, but I haven't checked if that works.A good tool for looking at all this is Spy++ which can help you see some information you can get hold of about a running process.