Process 后， 如何获取打开窗口的句柄？

[dongfangshang2]

myProcess.StartInfo.UseShellExecute = false;
                myProcess.StartInfo.FileName = txt_ClientPath.Text;
                myProcess.StartInfo.CreateNoWindow = true;
                myProcess.Start();

[iyomumx]

myProcess.MainWindowHandle

[dongfangshang2]

各位枚举不太行哦， 因为有几个同名的窗口， 是多线程的操作

[iyomumx]

同名窗口又怎样，你已经获得PID了，拿到窗口句柄以后GetWindowThreadProcessId验证下就可以了

[dongfangshang2]

[Quote=引用 8 楼 的回复:]

同名窗口又怎样，你已经获得PID了，拿到窗口句柄以后GetWindowThreadProcessId验证下就可以了
[/Quote]

我怎么获得PID了？ EnumWindows 枚举的时候 N个都是同名的窗口， 我如何能知道哪一个是我刚刚打开的呢。

[iyomumx]

Process.Id就是PID啊

[SocketUpEx]

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

namespace Text
{
    public class Program
    {
        [DllImport("user32.dll")]
        static extern IntPtr GetTopWindow(IntPtr hWnd);

        [DllImport("user32.dll")]
        static extern Int32 GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);

        [DllImport("user32.dll")]
        static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);

        [DllImport("user32.dll")]
        static extern IntPtr GetWindow(IntPtr hWnd, UInt32 uCmd);

        [DllImport("user32.dll")]
        static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);

        private static readonly UInt32 GW_HWNDNEXT = 2;

        static Int32 Run()
        {
            Process myProcess = new Process();
            myProcess.StartInfo.UseShellExecute = false;
            myProcess.StartInfo.FileName = "notepad.exe";
            myProcess.StartInfo.CreateNoWindow = true;
            myProcess.Start();
            myProcess.WaitForExit(2000);

            return myProcess.Id;
        }

        static IntPtr GetWnd(Int32 pID,String className, String text)
        {
            IntPtr h = GetTopWindow(IntPtr.Zero);
            while (h != IntPtr.Zero)
            {
                UInt32 newID;
                GetWindowThreadProcessId(h, out newID);
                if (newID == pID)
                {
                    StringBuilder sbClassName = new StringBuilder(200);
                    StringBuilder sbText = new StringBuilder(200);

                    GetClassName(h, sbClassName, 200);
                    GetWindowText(h, sbText, 200);
                    if (sbClassName.ToString().IndexOf(className,StringComparison.CurrentCultureIgnoreCase) >= 0 && 
                        sbText.ToString().IndexOf(text,StringComparison.CurrentCultureIgnoreCase) >= 0)
                    {
                        break;
                    }
                }

                h = GetWindow(h, GW_HWNDNEXT);
            }

            return h;
        }

        static void Main(string[] args)
        {
            Console.WriteLine(GetWnd(Run(), "Notepad", "无标题 - 记事本"));

            Console.ReadKey();
        }
    }
}

[dongfangshang2]

[Quote=引用 1 楼 的回复:]

myProcess.MainWindowHandle
[/Quote]

                myProcess.StartInfo.UseShellExecute = false;
                myProcess.StartInfo.FileName = path;
                myProcess.StartInfo.CreateNoWindow = true;
                             myProcess.Start();
                    Thread.Sleep(5000);
                    IntPtr temp = myProcess.MainWindowHandle;
                    MessageBox.Show(temp.ToString());

返回值0， 抓不到哦

[iyomumx]

那就只能调用EnumWindows API来枚举每个窗口并确定其所属进程以确定需要的窗口句柄

[SocketUpEx]

[DllImport("coredll.dll", EntryPoint="FindWindowW", SetLastError=true)]
private static extern IntPtr FindWindowCE(string lpClassName, string lpWindowName);

[事理]

myProcess.StartInfo.UseShellExecute = false;
myProcess.StartInfo.FileName = path;
myProcess.StartInfo.CreateNoWindow = true;
myProcess.Start();
myProcess.WaiteForExit();
IntPtr temp = myProcess.MainWindowHandle;
MessageBox.Show(temp.ToString());

如果等于0，就要枚举窗口了。
http://www.cnblogs.com/slyzly/articles/2331487.html

[dongfangshang2]

[Quote=引用 11 楼 的回复:]

C# code
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Text;

namespace Text
{
public class Program
{
[DllImport("user32.dll")]
st……
[/Quote]

多谢提供代码， 你用 private static readonly UInt32 GW_HWNDNEXT = 2; 来控制第二个？ 那如果有N个怎么办？

[SocketUpEx]

GW_HWNDNEXT 是获取下一个
不是获取第二个

[dongfangshang2]

[Quote=引用 13 楼 的回复:]

GW_HWNDNEXT 是获取下一个
不是获取第二个
[/Quote]

学习了，多谢