通過Win API 類比滑鼠點擊,使C# Java互動 (PART.1 C#部分)

首先是C# 部分:
   調用:
  

System.Collections.Queue q = new Queue();
            q.Enqueue(new QueueItem("ThunderRT6FormDC","Spy++ Lite V2.1"));
            q.Enqueue(new QueueItem("SSTabCtlWndClass",""));
            q.Enqueue(new QueueItem("ThunderRT6CommandButton","儲存(&S)"));
            int i= NativeWin32.ClickOnWindow(q);
            MessageBox.Show(i.ToString());

以上逐級從表單找到Tab頁, 在遭到按鈕, 最終將觸發點擊.
最終的傳回值I將體現當前已尋找成功的層級.

PINVOKE封裝:using System;
using System.Runtime.InteropServices; 

namespace RemoteCam
{
    public class QueueItem
    {
        public string ClassName;
        public string WindowCaption;
        public bool IsParent=true;
        public QueueItem(string className,string windowCaption)
        {
            ClassName=className;
            WindowCaption=windowCaption;
        }
        public QueueItem(string className,string windowCaption,bool isParent)
        {
            ClassName=className;
            WindowCaption=windowCaption;
            IsParent=isParent;
        }
    }
    public class NativeWin32
    {
        //Get Text / Set Text /Click
        public const int WM_GETTEXT = 0x000D; 
        public const int WM_SETTEXT = 0x000C; 
        public const int WM_CLICK = 0x00F5; 
        public const int SW_MAXIMIZE = 0x0003;
        public const int SW_SHOWNORMAL = 0x0001;

        [DllImport("User32.dll",EntryPoint="FindWindow")] 
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName); 
 
        [DllImport("user32.dll",EntryPoint="FindWindowEx")] 
        public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow); 
 
        [DllImport("User32.dll",EntryPoint="SendMessage")] 
        public static extern int SendMessage(IntPtr hwnd, int Msg, IntPtr wParam, string lParam); 

        [DllImport("user32.dll",EntryPoint="SetForegroundWindow")]
        public static extern void SetForegroundWindow(IntPtr hwnd);

        [DllImport("user32.dll",EntryPoint="ShowWindow")]
        public static extern void ShowWindow(IntPtr hwnd,int size);


        public static int ClickOnWindow(System.Collections.Queue queue)
        {
            int result = -1;
            IntPtr ParenthWnd = new IntPtr(0); 
            IntPtr ChildhWnd = new IntPtr(0); 
 
            QueueItem q = (QueueItem)queue.Dequeue();

            //查到表單，得到整個表單 
            ParenthWnd = FindWindow(q.ClassName,q.WindowCaption); 
            //判斷這個表單是否有效 
            if (!ParenthWnd.Equals(IntPtr.Zero)) 
            { 
                ShowWindow(ParenthWnd,SW_SHOWNORMAL);
                SetForegroundWindow(ParenthWnd);//啟用表單
                result++;

                while(queue.Count>0)
                {
                    q = (QueueItem)queue.Dequeue();
                    ChildhWnd = FindWindowEx(ParenthWnd,(IntPtr)0,q.ClassName,q.WindowCaption); 
                    if (!ChildhWnd.Equals(IntPtr.Zero)) 
                    { 
                        if(q.IsParent)
                            ParenthWnd=ChildhWnd;
                        result++;
                    }else
                        break;
                }

                //得到了Button ? 觸發它的Click事件 
                if (!ChildhWnd.Equals(IntPtr.Zero) && queue.Count==0) 
                { 
                    SendMessage(ChildhWnd,WM_CLICK,(IntPtr)0,"0");
                } 
            } 
 
            return result; 
        }
    }
}