Managed C++/CLI

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Re: i need help!!!!! David Wengier15-Jun-02 18:21 David Wengier 15-Jun-02 18:21  Rama Krishna wrote: At first I thought that it was pretty rude I think my reply was very rude. Heap management in a multithreaded windows application sailesh14-Jun-02 20:29 sailesh 14-Jun-02 20:29  Hi everybody! I have a typical problem here. My application is a multithreaded one. In one of the cases, there are multiple threads which will be using a common buffer which is a member variable of a particular class. This buffer is also allocated memory by one of these threads and to be accessed by the other threads. I am getting a dbg_heap error as debug assertion. How do i go about solving this problem. Please help me out as this is very urgent. Thanx in advance. regards, sailesh Re: Heap management in a multithreaded windows application James T. Johnson14-Jun-02 20:42 James T. Johnson 14-Jun-02 20:42  Use one of the synchronization classes to ensure that only one thread can access the thread at a time (or multiple threads can read; but they must be done before a write could be performed). Look for the .NET Monitor and Mutex classes for more info (more are available but those two are off the top of my head). James Some hope for MC++ coders Nish Nishant13-Jun-02 19:55 Nish Nishant 13-Jun-02 19:55  But yes, we do intend to add this feature to a future version of the product and we are working very hard to make that the very first future version. Ronald Laeremans Visual C++ compiler and libraries team Cool huh? That was in response to a question by someone asking when MC++ will have a Windows Forms designer Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders Derek Lakin13-Jun-02 20:06 Derek Lakin 13-Jun-02 20:06  Great News!! I'm just getting in to MC++ and finding this a bit of pain. Derek Lakin. I wish I was what I thought I was when I wished I was what I am. Salamander Software Ltd. Re: Some hope for MC++ coders Nish Nishant13-Jun-02 20:25 Nish Nishant 13-Jun-02 20:25  Derek Lakin wrote: Great News!! I'm just getting in to MC++ and finding this a bit of pain. Yeah. Now we won't have to waste 10 minutes to align a text box and a combo box on a form Just drag/drop/size it. Cool! Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders Alexandru Savescu13-Jun-02 21:52 Alexandru Savescu 13-Jun-02 21:52  Yes, this really looks like good news Best regards, Alexandru Savescu Re: Some hope for MC++ coders Nish Nishant13-Jun-02 21:59 Nish Nishant 13-Jun-02 21:59  Alexpro wrote: Yes, this really looks like good news I hope they bring it out as a Service Pack [which is free] instead of as a new version [which won't be free] Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders Michael P Butler13-Jun-02 22:08 Michael P Butler 13-Jun-02 22:08  Nish - Native CPian wrote: I hope they bring it out as a Service Pack [which is free] instead of as a new version [which won't be free] Surely you'll just be using a pirated version anyway Michael "Eureka" is Greek for "This bath is too hot" Re: Some hope for MC++ coders Nish Nishant13-Jun-02 22:21 Nish Nishant 13-Jun-02 22:21  Michael P Butler wrote: Surely you'll just be using a pirated version anyway Pirated versions don’t come free MPB. You gotta pay for them. And if you compare salaries, I pay as much of my monthly salary for a pirated CD, that a regular software guy in most other countries would pay for a legal copy of VS .NET. Anyway I strongly intend to make some money and get myself a LEGAL MSDN subscription. Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders James T. Johnson13-Jun-02 22:23 James T. Johnson 13-Jun-02 22:23  Nish may use some pirated software but his VS.NET CDs ARE originals from Microsoft. Its just that they were originally given to me and we'll just say that Nish pulled them out of the trash can next to my desk right after I tossed them :P Come to think of it, I still have another set sitting next to me Michael P Butler wrote: "Eureka" is Greek for "This bath is too hot" Nothing gets you thinking like burning your jewels in the morning. James Re: Some hope for MC++ coders Nish Nishant13-Jun-02 22:26 Nish Nishant 13-Jun-02 22:26  James T. Johnson wrote: Nish may use some pirated software but his VS.NET CDs ARE originals from Microsoft. James T. Johnson wrote: Nothing gets you thinking like burning your jewels in the morning Now we know what a jewelhole is! Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders Michael P Butler13-Jun-02 22:07 Michael P Butler 13-Jun-02 22:07  I wonder how useful this feature really is. What advantages do we get for doing UI code in MC++ compared to doing it in C# ? Michael "Eureka" is Greek for "This bath is too hot" Re: Some hope for MC++ coders Rama Krishna Vavilala13-Jun-02 22:05 Rama Krishna Vavilala 13-Jun-02 22:05  Michael P Butler wrote: What advantages do we get for doing UI code in MC++ compared to doing it in C# ? None whatsoever It is good to see that you are slowly subscribing to my views Mike. Re: Some hope for MC++ coders James T. Johnson13-Jun-02 22:14 James T. Johnson 13-Jun-02 22:14  If the rest of your app is in MC++ you don't have to ship a separate assembly for the UI Otherwise there isn't an advantage that I can think of. James Re: Some hope for MC++ coders Nish Nishant13-Jun-02 22:23 Nish Nishant 13-Jun-02 22:23  James T. Johnson wrote: Otherwise there isn't an advantage that I can think of. Some languages are more comfortable. When you do MC++, you don't feel as alienated from real unmanaged life as when you do C# Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders James T. Johnson13-Jun-02 22:32 James T. Johnson 13-Jun-02 22:32  Nish - Native CPian wrote: When you do MC++, you don't feel as alienated from real unmanaged life as when you do C# I don't feel alienated from it because I have P/Invoke and if I really need to, I know I can just create an assembly in MC++ and do my work there. James Re: Some hope for MC++ coders Nish Nishant13-Jun-02 22:36 Nish Nishant 13-Jun-02 22:36  James T. Johnson wrote: I have P/Invoke James T. Johnson wrote: create an assembly in MC++ Why go to all that bother just to do C#? What's so appealing about it? Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders James T. Johnson13-Jun-02 22:44 James T. Johnson 13-Jun-02 22:44  For .NET code its a lot cleaner to me. You need to be aware of a few performance tweaks (such as avoiding unnecessary boxing) but over all the syntax is much better. Which of these do you prefer? MC++ ptr = *dynamic_cast<__box System::IntPtr*>(arlist->Item[index]); or this C# ptr = (IntPtr) arlist[index] However, the code I sent you the other day would convince me to switch to MC++ in a heart beat James Re: Some hope for MC++ coders Nish Nishant13-Jun-02 23:07 Nish Nishant 13-Jun-02 23:07  James T. Johnson wrote: However, the code I sent you the other day would convince me to switch to MC++ in a heart beat Yeah. That was cool Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders Nish Nishant13-Jun-02 22:18 Nish Nishant 13-Jun-02 22:18  Michael P Butler wrote: What advantages do we get for doing UI code in MC++ compared to doing it in C# ? None except personal preference. Basically anything you do in C# can be one-to-one mapped in VB .NET But still lot of people don't do VB .NET. Similarly some only do VB .NET. And I prefer MC++. And I can tell you that it's a cool feeling when you can use an MFC CString alongside a .NET String in the same source file. You cannot do that with C# or VB .NET, can you? Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: Some hope for MC++ coders Rocky Moore13-Jun-02 23:20 Rocky Moore 13-Jun-02 23:20  Nish - Native CPian wrote: And I can tell you that it's a cool feeling when you can use an MFC CString alongside a .NET String in the same source file. You cannot do that with C# or VB .NET, can you? Actually, isn't that an ATL string [in] MFC [in] .NET Rocky Moore Re: Some hope for MC++ coders Nish Nishant13-Jun-02 23:27 Nish Nishant 13-Jun-02 23:27  Rocky Moore wrote: Actually, isn't that an ATL string [in] MFC [in] .NET Yes it is Author of the romantic comedy Summer Love and Some more Cricket [New Win] Indexers, MC++ and C# sultan_of_6string13-Jun-02 19:01 sultan_of_6string 13-Jun-02 19:01  Hi! I'm writing a cross-platform app using the .NET framework. The bulk of my program is in C# but for performance reasons, I'm had to implement a bit in Managed C++. My Managed C++ .dll includes a class that implements the IList interface: ... __property virtual bool get_IsReadOnly(); __property virtual Object* get_Item(int index); __property virtual void set_Item(int index, Object* value); virtual int Add(Object* value); etc. So, the get_Item/set_Item properties above appear as the Item property in VB.NET and MC++. In C#, it should appear as an indexer (object this[int index]). However, what I get is two methods called get_Item and set_Item. What's wrong? Re: Indexers, MC++ and C# Nish Nishant13-Jun-02 19:11 Nish Nishant 13-Jun-02 19:11  This problem has been reported a few days ago in this same forum by someone else. Apparently MC++ collections are not accessible through C# indexers. I haven't tried it out yet. Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me

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