c#调用windows api修改文本框的值

小渣渣

随便写了个winfrom程序，然后，用windows api去修改软件里面文本框的内容，

winapi如下：

1. public static class WinAPI
   
2.     {
   
3.         public const int MOUSEEVENTF_MOVE = 0x0001;    //  移动鼠标
   
4.         public const int MOUSEEVENTF_LEFTDOWN = 0x0002;// 模拟鼠标左键按下
   
5.         public const int MOUSEEVENTF_LEFTUP = 0x0004; //模拟鼠标左键抬起
   
6.         public const int MOUSEEVENTF_RIGHTDOWN = 0x0008; //模拟鼠标右键按下
   
7.         public const int MOUSEEVENTF_RIGHTUP = 0x0010;// 模拟鼠标右键抬起
   
8.         public const int MOUSEEVENTF_MIDDLEDOWN = 0x0020; //模拟鼠标中键按下
   
9.         public const int MOUSEEVENTF_MIDDLEUP = 0x0040; //模拟鼠标中键抬起
   
10.         public const int MOUSEEVENTF_ABSOLUTE = 0x8000; //标示是否采用绝对坐标
    
11. 
    
12.         public const int WM_GETTEXT = 0x000D;  //13
    
13.         public const int WM_SETTEXT = 0x000C; //12
    
14.         public const int WM_CLICK = 0x00F5; //245
    
15. 
    
16.         [DllImport("user32.dll", EntryPoint = "mouse_event", SetLastError = true)]
    
17.         public static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);
    
18. 
    
19.         //方法声明
    
20.         [DllImport("user32.dll")]
    
21.         public static extern int SendMessage(IntPtr Handle, int WParam, int LParam);
    
22. 
    
23.         [DllImport("User32.dll", EntryPoint = "FindWindow")]
    
24.         public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
    
25. 
    
26.         [DllImport("user32.dll", EntryPoint = "FindWindowEx")]
    
27.         public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
    
28. 
    
29.         [DllImport("User32.dll", EntryPoint = "SendMessage")]
    
30.         public static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);
    
31. 
    
32.         [DllImport("user32.dll ", EntryPoint = "GetDlgItem")]
    
33.         public static extern IntPtr GetDlgItem(IntPtr hParent, int nIDParentItem);
    
34. 
    
35.         [DllImport("user32.dll", EntryPoint = "GetWindowText")]
    
36.         public static extern int GetWindowText(IntPtr hwnd, StringBuilder lpString, int cch);
    
37. 
    
38.         [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    
39.         public static extern int GetWindowTextLength(IntPtr hWnd);
    
40. 
    
41.         [DllImport("user32.dll", EntryPoint = "SendMessage", SetLastError = true, CharSet = CharSet.Auto)]
    
42.         public static extern int SendMessage(IntPtr hwnd, uint wMsg, int wParam, int lParam);
    
43. 
    
44.         [DllImport("user32.dll")]
    
45.         public static extern int EnumChildWindows(IntPtr hWndParent, CallBack lpfn, int lParam);
    
46.         public delegate bool CallBack(IntPtr hwnd, int lParam);
    
47.     }

复制代码

调用代码如下：

游客，如果您要查看本帖隐藏内容请回复

demo下载：

游客，如果您要查看本帖隐藏内容请回复

woyaodaili1314

现在有两个文本框，名字是一样的，用你的方法只有一个文本框有内容，另外一个是空白的，有什么办法解决吗？@小渣渣

dq88944755

看看                      ~

小渣渣

c# 调用windows api获取文本框内容
http://www.itsvse.com/thread-3288-1-1.html
(出处: 架构师)

ichinaec

真不错，感谢啊。

heijitaizi

oooookkkkkkkkkkkkkk

524313162

求啊   啊大苏打实打实

tomas

兄弟，能不能一次说清楚？

ylshe

谢谢大师，我找一好久了

大米1111

不错，值得学习参考

jiangzhe556

要要要要要要要要要要要

jiuxiangqq

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