activex

We are required to use a 3rd party ActiveX control. The only issue is, the layer in our software is a business layer and has no access to a window or form. It also runs on separate threads (and should work from any thread) that are not STA. Rather than breaking our separation of UI from business logic, we used this workaround to make it work: Thread thread = new Thread((ThreadStart) delegate { _myActiveX = new MyActiveXType(); _myActiveX.CreateControl(); //more initialize work Application.Run(); }); thread.SetApartmentState(ApartmentState.STA); thread.IsBackground = true; thread.Start(); Then

作者：巴哈姆特 http://www.cnpack.org（转载请注明出处并保持完整） 　如果没有接触过COM对象的话，你会觉得接口真的很麻烦，也许会有：“还不如直接定义一个类更方便”的想法。 的确，没有经过COM封装的接口确实比较麻烦。在我看来，没有经过COM封装的接口似乎没有存在的意义。那么，什么是COM对象呢？它有什么优点呢？接下来开始对COM对象进行一个简单的介绍： COM是个二进制规范，它与实现的语言无关。这样，即使COM对象由不同的编程语言创建，运行在不同的进程空间和不同的操作系统平台，这些对象也能相互通信。COM既是规范，也是实现，它以COM库的形式提供了访问COM对象核心功能的标准接口以及一组API函数，这些API函数用于创建和管理COM对象。COM本质上仍然是客户服务器模式。客户(通常是应用程序)请求创建COM对象并通过COM对象的接口操纵COM对象。服务器根据客户的请求创建并管理COM对象。当然，客户和服务器这两种角色并不是绝对的。 记得我在刚刚接触COM对象的时候，我师傅曾经给我说过：“COM不是Dll，虽然它可能会以后缀名为dll文件呈现在你面前，但是它绝对不是我们传统意义上所说的dll(动态链接库)”。 其实在我看来，进程内的COM对象应该是一个以dll为载体而提供一些特殊服务的特殊的动态链接库。当然，也有进程外的COM。 现在

I need to compile some code of mine using the gcc compiler included in the R tools (R the statistical program for windows), the problem is that I need to use IDispatch in my code to create an access the methods of a COM object, and the gcc compiler doesn't support much of the code that I'm using to do so, which is basically C++ code. So my question is how can I use IDispatch in C to create the COM object without having to depend on MFC, .NET, C#, WTL, or ATL. I believe that if I do so I will be able to compile my code without any problem. There is a great article on CodeProject entitled "COM

Has anyone come across this issue? Seems MS have broken it with their own update: A number of people have reported problems using the ActiveX print control in the report viewer after installing Microsoft Update 956391. Specifically, users receive the error "Unable to load client print control" when clicking on the print icon in the report viewer toolbar. I would like to explain what is happening, why we did it, and how to fix the problems that you or your customers are experiencing. From here: http://blogs.msdn.com/brianhartman/archive/2008/11/05/client-print-fails-to-load-after-microsoft

am trying to read few lines from a txt file using JS,and i have this code but its not working for some reason,, var fso = new ActiveXObject("Scripting.FileSystemObject"); var s = fso.OpenTextFile("C:\\wamp\\www\\22.txt", 1, true); var row = s.ReadLine(); alert(row); any suggestions?! If you're running WAMP anyway, just use standard AJAX to fetch the file 22.txt from the server. The easiest way is to use jQuery, where the code would be: $.get("22.txt", function(data) { alert(data); } You can search for how to do this without jQuery if you wish. Make sure your browser has the right permissions