C#操作窗口类(句柄操作)

C#写个类操作窗口（句柄操作）

实现过程：

过程一：找到当前鼠标位置的句柄

您的使用 2 个 WinAPI（俺喜欢自己封装下来用）：

View Code

[DllImport("user32.dll", EntryPoint = "GetCursorPos")]

public static extern bool GetCursorPos(out Point pt);

[DllImport("user32.dll", EntryPoint = "WindowFromPoint")]

{

return p;

}

return default(Point);

}

/// <summary>

/// 找到句柄

/// </summary>

/// <param name="p">坐标</param>

/// <returns></returns>

View Code

[DllImport("user32.dll", EntryPoint = "SendMessage")]

private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string

lParam);

/// <summary>

/// 给窗口发送内容

/// </summary>

/// <param name="hWnd">句柄</param>

/// <param name="lParam">要发送的内容</param>

public static void SetText(IntPtr hWnd, string lParam)

}

通过这个方法就能改变 Text 的值了。

回答：类名不变呀。

过程三：您的准备一些工具吧，例如：句柄找类名呀，类名找句柄什么的等等，下面会用到一些 WinAPI

View Code

[DllImport("user32.dll", EntryPoint = "FindWindow")]

private static extern IntPtr FindWindow(string IpClassName, string IpWindowName);

[DllImport("user32.dll", EntryPoint = "FindWindowEx")]

private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter,

string lpszClass, string lpszWindow);

[DllImport("user32.dll", EntryPoint = "GetParent")]

public static extern IntPtr GetParent(IntPtr hWnd);

public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int

return FindWindow(IpClassName, null);

}

/// <summary>

/// 子窗口句柄

/// </summary>

/// <param name="hwndParent">父窗口句柄</param>

/// <param name="hwndChildAfter">前一个同目录级同名窗口句柄</param>

/// <param name="lpszClass">类名</param>

/// <returns></returns>

public static IntPtr GetChildHandle(IntPtr hwndParent, IntPtr hwndChildAfter, string

}

/// <summary>

hwndClient != IntPtr.Zero; hwndClient = GetChildHandle(hwndParent, hwndClient, className))

{

resultList.Add(hwndClient);

}

return resultList;

}

/// <summary>

/// 找类名

/// </summary>

/// <param name="hWnd">句柄</param>