如何知道 Process.Start 何时加载 winform?

本文介绍了如何知道 Process.Start 何时加载 winform?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在 WindowsForm (c# 3.5) 中，点击一个按钮，使用 Process.Start() 启动另一个外部应用程序(也是 3.5)，并了解它在我启动后何时可用.

I'm in a WindowsForm (c# 3.5) and on click of a button launch another external application (also 3.5) using Process.Start() and understand when it is available after i have launched it.

ProcessStartInfo psInfo = new ProcessStartInfo(@"MyApplication.exe"); psInfo.RedirectStandardOutput = true; psInfo.RedirectStandardError = true; psInfo.UseShellExecute = false; psInfo.CreateNoWindow = true; Process proc = Process.Start(psInfo); proc... IsFullyLoaded()?

我该怎么做?

推荐答案

要等待进程创建其表单，请调用 WaitForInputIdle 方法.

To wait for the process to create its form, call the WaitForInputIdle method.

要了解它是否准备就绪，请尝试以下操作:

To find out whether it's ready, try this:

bool isReady = proc.WaitForInputIdle(0);

或者，或者，

bool isReady = (proc.MainWindowHandle != IntPtr.Zero);

您还可以使用 MainWindowHandle 属性通过 SendMessage API 函数

You can also use the MainWindowHandle property to send messages to the form using the SendMessage API function