c#如何获取window窗口句柄及里面的内容？

[DllImport("User32.dll",EntryPoint="FindWindow")]
private static extern IntPtr FindWindow(string lpClassName,string lpWindowName);
IntPtr hWnd = FindWindow(null,"微信");

捕获窗体内的文本，先看看相关的api

// 查找窗口
[DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

// 遍历窗口的所有子窗口，通过CallBack回调
[DllImport("user32.dll")]
public static extern int EnumChildWindows(IntPtr hWndParent, CallBack lpfn, int lParam);
public delegate bool CallBack(IntPtr hwnd, int lParam);

// 获取窗口的类名
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);

// 判断窗口是否可见
[DllImport("user32.dll")]
public static extern bool IsWindowVisible(IntPtr hWnd);

// 获取窗口文本长度
[DllImport("user32.dll")]
public static extern int GetWindowTextLength(IntPtr hWnd);

// 获取窗口文本，文本会塞入StringBuilder中，需要指明字符串最大长度nMaxCount
[DllImport("User32.dll", EntryPoint = "GetWindowText")]
private static extern int GetWindowText(IntPtr hwnd, StringBuilder lpString, int nMaxCount);

// 给窗口发送消息
[DllImport("user32.dll", EntryPoint = "SendMessageA")]
public static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

// 给窗口发送消息，事件返回的数据通过Byte[]数组获得
[DllImport("user32.dll", EntryPoint = "SendMessageA")]
public static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, Byte[] lParam);

using System...

点击查看剩余70%