查找并启动应用程序的窗口 [英] Find and activate an application's window

问题描述

假设的notepad.exe是开放和它的窗口处于非活动状态。我会写一个应用程序来激活它。如何使？

Assume that notepad.exe is opening and the it's window is inactive. I will write an application to activate it. How to make?

更新：窗口标题是不确定的。所以，我不喜欢它基于窗口的标题使用的FindWindow。

Update: The window title is undefined. So, I don't like to use to FindWindow which based on window's title.

我的应用程序是WinForm的C＃2.0。谢谢你。

My application is Winform C# 2.0. Thanks.

推荐答案

您需要的P / Invoke SetForegroundWindow（）。 Process.MainWindowHandle可以给你你需要的手柄。例如：

You'll need to P/invoke SetForegroundWindow(). Process.MainWindowHandle can give you the handle you'll need. For example:

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;

class Program {
    static void Main(string[] args) {
        var prc = Process.GetProcessesByName("notepad");
        if (prc.Length > 0) {
            SetForegroundWindow(prc[0].MainWindowHandle);
        }
    }
    [DllImport("user32.dll")]
    private static extern bool SetForegroundWindow(IntPtr hWnd);
}

请注意，如果你有记事本中运行多个副本的模糊性。

Note the ambiguity if you've got more than one copy of Notepad running.

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