C# user32.dll 找窗口填数据

工具：SpyLite

 1 [DllImport("user32.dll", EntryPoint = "FindWindow")]
 2         private extern static IntPtr FindWindow(string lpClassName, string lpWindowName);//常用来查找最上级窗口
 3 
 4         [DllImport("user32.dll", EntryPoint = "FindWindowEx")]
 5         private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);//最适合使用【按类型查找】来找到目标填充栏
 6 
 7         [DllImport("user32.dll", EntryPoint = "SendMessageA")]
 8         private static extern int SendMessageA(IntPtr hwnd, int wMsg, IntPtr wParam, string lParam);//向目标填充栏 填充文本（有时候目标有【仅数字】之类的限制，这时候发不符合的文本就不行了）
 9 
10         [DllImport("user32.dll", SetLastError = true)]
11         static extern IntPtr GetWindow(IntPtr hWnd, GetWindow_Cmd uCmd);//类似树结构的查找方式，实测中GW_HWNDNEXT经常找不着，鼠标划过一下目标，又找着了......
12         const int WM_SETTEXT = 0x000C;
13         enum GetWindow_Cmd : uint
14         {
15             GW_HWNDFIRST = 0,
16             GW_HWNDLAST = 1,
17             GW_HWNDNEXT = 2,
18             GW_HWNDPREV = 3,
19             GW_OWNER = 4,
20             GW_CHILD = 5,
21             GW_ENABLEDPOPUP = 6
22         }

  1 string msg = "";
  2             IntPtr hMainWnd = FindWindow(null, "父窗口名");//此处有待修改，父窗口类型和标题，那个唯一的可能性更大就用哪个
  3             IntPtr hNextWnd;
  4             IntPtr hLastWnd; 
  5             if (hMainWnd != IntPtr.Zero)
  6             {
  7  
  8                 //子 hKPfameWnd
  9                 hNextWnd = FindWindowEx(hMainWnd, IntPtr.Zero, null, "FPtiankai_new");
 10                 if (IntPtr.Zero == hNextWnd)
 11                 {
 12                     msg = "SetValueGolden = ::FindWindowEx-1没找到";
 13 
 14                     return msg;
 15 
 16                 }
 17                 hLastWnd = hNextWnd;
 18 
 19                 //向下找两层
 20                 for (int i = 0; i < 2; i++)
 21                 {
 22                     hNextWnd = FindWindowEx(hLastWnd, IntPtr.Zero, "WindowsForms10.Window.8.app.0.3598b65_r16_ad1", null);
 23                     if (IntPtr.Zero == hNextWnd)
 24                     {
 25                         msg = "SetValueGolden = ::FindWindowEx-2没找到";
 26 
 27                         return msg;
 28                     }
 29                     hLastWnd = hNextWnd;
 30                 }
 31 
 32                 hNextWnd = GetWindow(hLastWnd, GetWindow_Cmd.GW_CHILD);//返回其第一个子窗体
 33                 if (IntPtr.Zero == hNextWnd)
 34                 {
 35                     msg = "SetValueGolden = ::FindWindowEx-3没找到";
 36                     return msg;
 37                 }
 38                 hLastWnd = hNextWnd;
 39 
 40                 /*此时的窗口布局如下
 41                 3541882   WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:北京                    这是刚刚找到的
 42                 4853516   WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:北  京
 43                 1513288   WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:ddd
 44                 4919418   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 45                 4000606   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 46                 1443834   WindowsForms10.EDIT.app.0.3598b65_r16_ad1           标题:
 47                 1181678   WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:￥0.00
 48                 22088970  WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:零圆整
 49                 10817716  WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:￥0.00
 50                 1247228   WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:￥0.00
 51                 5969752   WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:2017年08月08日
 52                 10425028  WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:08919001
 53                 920118    WindowsForms10.STATIC.app.0.3598b65_r16_ad1             标题:1100164320
 54                 4852040   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 55                 788912    WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 56                 1706660   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 57                 5179046   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 58                 3018896   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:
 59                 5444734   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:           子窗口——WindowsForms10.EDIT.app.0.3598b65_r16_ad1——目标【1】
 60                 24187592  WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:           同上——目标【2】
 61                 985234    WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:           同上——目标【3】
 62                 5965524   WindowsForms10.Window.8.app.0.3598b65_r16_ad1               标题:              同上——目标【4】 
 63                                 */
 64 
 65                 //同一层找接下来18个控件
 66                 for (int i = 0; i < 18; i++)
 67                 {
 68 
 69                     hNextWnd = GetWindow(hLastWnd, GetWindow_Cmd.GW_HWNDNEXT);//找的是NEXT
 70                     if (IntPtr.Zero == hNextWnd)
 71                     {
 72                         msg = "SetValueGolden = ::FindWindowEx-i="+i+"没找到";
 73                         return msg;
 74                     }
 75                     hLastWnd = hNextWnd;
 76                 }
 77                 //【hLastWnd不更新 】
 78 
 79 
 80                 //目标1
 81                 hNextWnd = FindWindowEx(hLastWnd, IntPtr.Zero, "WindowsForms10.EDIT.app.0.3598b65_r16_ad1", null); 
 82                 if (IntPtr.Zero == hNextWnd)
 83                 {
 84                     msg = "SetValueGolden = ::FindWindowEx-目标1";
 85                     return msg;
 86                 }
 87                 SendMessageA(hNextWnd, WM_SETTEXT, IntPtr.Zero, info.Bank + " " + info.BankAccount);
 88 
 89 
 90                 //hLastWnd再更新
 91                 hNextWnd = GetWindow(hLastWnd, GetWindow_Cmd.GW_HWNDNEXT);
 92                 if (IntPtr.Zero == hNextWnd)
 93                 {
 94                     msg = "SetValueGolden = ::FindWindowEx-4没找到";
 95                     return msg;
 96                 }
 97                 hLastWnd = hNextWnd;
 98                 //目标2
 99                 hNextWnd = FindWindowEx(hLastWnd, IntPtr.Zero, "WindowsForms10.EDIT.app.0.3598b65_r16_ad1", null); 
100                 if (IntPtr.Zero == hNextWnd)
101                 {
102                     msg = "SetValueGolden = ::FindWindowEx-目标2";
103                     return msg;
104                 }
105                 SendMessageA(hNextWnd, WM_SETTEXT, IntPtr.Zero, info.TaxpayerCode);
106 
107                 //hLastWnd再更新
108                 hNextWnd = GetWindow(hLastWnd, GetWindow_Cmd.GW_HWNDNEXT);
109                 if (IntPtr.Zero == hNextWnd)
110                 {
111                     msg = "SetValueGolden = ::FindWindowEx-5没找到";
112                     return msg;
113                 }
114                 hLastWnd = hNextWnd;
115                 //目标3
116                 hNextWnd = FindWindowEx(hLastWnd, IntPtr.Zero, "WindowsForms10.EDIT.app.0.3598b65_r16_ad1", null);
117                 if (IntPtr.Zero == hNextWnd)
118                 {
119                     msg = "SetValueGolden = ::FindWindowEx-目标3";
120                     return msg;
121                 }
122                 SendMessageA(hNextWnd, WM_SETTEXT, IntPtr.Zero, info.Address + " " + info.Telephone);
123 
124                 //hLastWnd再更新
125                 hNextWnd = GetWindow(hLastWnd, GetWindow_Cmd.GW_HWNDNEXT);
126                 if (IntPtr.Zero == hNextWnd)
127                 {
128                     msg = "SetValueGolden = ::FindWindowEx-6没找到";
129                     return msg;
130                 }
131                 hLastWnd = hNextWnd;
132                 //目标4 
133                 hNextWnd = FindWindowEx(hLastWnd, IntPtr.Zero, "WindowsForms10.EDIT.app.0.3598b65_r16_ad1", null);
134                 if (IntPtr.Zero == hNextWnd)
135                 {
136                     msg = "SetValueGolden = ::FindWindowEx-目标4";
137                     return msg;
138                 }
139                 SendMessageA(hNextWnd, WM_SETTEXT, IntPtr.Zero, info.TaxpayerName);
140 
141 
142             }
143             else
144             {
145                 msg = "没有找到目标软件";
146                 return msg;
147             }

实测：FindWindowEx 比 GetWindow靠谱，查找文本框等需要填充的控件，尽量使用FindWindowEx按窗体类型查找

C# user32.dll 找窗口 填数据

C# user32.dll 找窗口填数据