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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.Threading;
namespace ConsoleApplication1
{
class Program
{
[DllImport("user32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll", EntryPoint = "FindWindowEx", CharSet = CharSet.Auto)]
extern static IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);
[STAThread]
static void Main(string[] args)
{
string path = "C:\\WINDOWS\\system32\\calc.exe";
Process p = Process.Start(path);
if (p == null)
Console.WriteLine("Warning:process may already exist");
Console.WriteLine("Finding main window handle");
IntPtr mainWindows = FindMainWindowHandle("计算器", 100, 25);
Console.WriteLine("Handle to main window is " + mainWindows);
//有名字控件句柄
Console.WriteLine("Findding handle to button1");
IntPtr butt = FindWindowEx(mainWindows, IntPtr.Zero, null, "Backspace");//这里的1是,计算器上名字为1的按钮
if (butt == IntPtr.Zero)
throw new Exception("Unable to find button1");
else
Console.WriteLine("Handle to button1 is " + butt);
SendMessage(mainWindows, 0X101, butt, null);
//没有名字或者重名控件
//Console.WriteLine("Findding handle to listbox1");
//IntPtr lb = FindWindowByIndex(mwh, 3);
//if (lb == IntPtr.Zero)
// throw new Exception("Unable to find listbox1");
//else
// Console.WriteLine("Handle to listbox1 is " + lb);
}
//通过索引查找相应控件句柄
static IntPtr FindWindowByIndex(IntPtr hwndParent, int index)
{
if (index == 0)
{
return hwndParent;
}
else
{
int ct = 0;
IntPtr result = IntPtr.Zero;
do
{
result = FindWindowEx(hwndParent, result, null, null);
if (result != IntPtr.Zero)
{
++ct;
}
} while (ct < index && result != IntPtr.Zero);
return result;
}
}
//获得待测程序主窗体句柄
private static IntPtr FindMainWindowHandle(string caption, int delay, int maxTries)
{
IntPtr mwh = IntPtr.Zero;
bool formFound = false;
int attempts = 0;
while (!formFound && attempts < maxTries)
{
if (mwh == IntPtr.Zero)
{
Console.WriteLine("Form not yet found");
Thread.Sleep(delay);
++attempts;
mwh = FindWindow(null, caption);
}
else
{
Console.WriteLine("Form has been found");
formFound = true;
}
}
if (mwh == IntPtr.Zero)
throw new Exception("Could not find main window");
else
return mwh;
}
}
}
//有名字控件句柄
Console.WriteLine("Findding handle to button1");
IntPtr butt = FindWindowEx(mainWindows, IntPtr.Zero, "Button", "1");//这里的1是,计算器上名字为1的按钮
if (butt == IntPtr.Zero)
throw new Exception("Unable to find button1");
else
Console.WriteLine("Handle to button1 is " + butt);
SendMessage(mainWindows, 0x102, butt, null);
Console.ReadLine();