高手请赐教：利用能抓窗口文字软件提供的dll接口去捕获指定窗口中的文字？

manlty

以下是摘录的该捕捉程序的帮助文件里的一段说明：

   1.1.         Creating a TextCaptureX object 
First of all, the TCaptureX library must be registered on 
the system. This can be done using the following command: 

       regsvr32 <path>\TCaptureX.dll 

where <path> is the actual path to the TCaptureX library. 
The   registrations   process   is   automatically  done   from   the 
setup. 

Following are some examples on how to create a TextCaptureX 
object in your application.

Remark: before creating the object, CoInitialize API 
function must be called. 

       1.1.2.           C# 
   -   add   TCaptureX   library   to   the   list   of   the   project 
       references 
       Optionally, you may add at the beginning of the file: 

             using TCaptureXLib; 

       in order to reference          the objects without specifying 
the namespace. 

       The actual creation is: 

             TextCaptureXClass obj = new TextCaptureXClass(); 

       1.1.3.           Visual Basic 
   -   add   TCaptureX   library   to   the   list   of   the   project 
       references 
      The actual creation is: 

         Dim obj As New TextCaptureX 

   1.2.         Using a TextCaptureX object 

TextCaptureX object exposes the following methods: 
   -   GetActiveWindowHwnd 
   -   CaptureInteractive 
   -   CaptureActiveWindow 
   -   GetTextFromPoint 
   -   GetTextFromRect 

1.2.3.            CaptureActiveWindow method 

              HRESULT CaptureActiveWindow([out,retval] BSTR* result); 

This method captures the text from the window that is currently active, 
that   is   the   window   returned   by   the   GetActiveWindowHwnd   method.   The 
return value is the entire text from the active window. 
Remark: The application where this method is called is responsible of 
NOT containing the active window of the system. 

Parameters: 
BSTR* result : the text from the active window 

Examples: 
Visual C++: 

              _bstr_t result = obj->CaptureActiveWindow(); 

C#: 
              string result = obj.CaptureActiveWindow(); 

Visual Basic: 
              Dim result As String 
              result = obj.CaptureActiveWindow() 

manlty

请高手写个示范程序，抓活动窗口里的文字

netegg

只有out，没有in？

manlty

楼上朋友，难道这个dll不是用来截取任意窗口里的文字的吗？