Managed C++/CLI

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Re: MC++? Alexandru Savescu2-Jun-02 21:52 Alexandru Savescu 2-Jun-02 21:52  Albert Pascual wrote: Let's not forget the garbage collection. I believe that a good programmer has to be able to manage his/her own memory. I am wondering how much overhead the garbace collection produce? Best regards, Alexandru Savescu Re: MC++? James T. Johnson28-May-02 19:08 James T. Johnson 28-May-02 19:08  No, you're thinking of Tom Archer's book, Visual C++.NET Bible; Visual C++.NET Step by Step is an MC++ book. James Simplicity Rules! Re: MC++? 3-Jun-02 6:02 3-Jun-02 6:02  I believe a good programmer uses the best tools for the job, and MC++ is a good tool. Al PS Even with the garbage collection is a good idea to manage your memory Re: MC++? Nish Nishant28-May-02 19:38 Nish Nishant 28-May-02 19:38  James T. Johnson wrote: Visual C++.NET Step by Step is an MC++ book. Oh! Sorry Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++? Michael P Butler28-May-02 20:20 Michael P Butler 28-May-02 20:20  Nish - Native CPian wrote: it's more of an MFC book I'd say with a few chapters dedicated to MC++ Nah, its pure .NET. I can't see any MFC code in the book at all. It does a bit of ATL but only the new Server stuff. A very good book for a C++ programmer wanting to know how they can use their knowledge under .NET Michael Re: MC++? Nish Nishant28-May-02 21:29 Nish Nishant 28-May-02 21:29  Michael P Butler wrote: Nah, its pure .NET. I can't see any MFC code in the book at all. It does a bit of ATL but only the new Server stuff. A very good book for a C++ programmer wanting to know how they can use their knowledge under .NET I know, I know. James told me Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++? Brian Olej29-May-02 15:21 Brian Olej 29-May-02 15:21  Is MC++ worth learning if I've already started learning C# and do not have any Unmanged code that I need to keep? I also need some ideas of C++ API's or other programming languages(non .NET) that I could learn. The reason im asking this is becuase I think I need a break from .NET and MFC for a little while. Re: MC++? Nish Nishant29-May-02 15:29 Nish Nishant 29-May-02 15:29  brian1415 wrote: Is MC++ worth learning if I've already started learning C# and do not have any Unmanged code that I need to keep? Nope! MC++ is nearly unsupported by VS.NET. A lot of things just dont work for MC++ the same way it does for C#. So unless you wanna hand code everything stick to C#. Specially since you don't wanna do any unmanaged stuff! brian1415 wrote: also need some ideas of C++ API's or other programming languages(non .NET) that I could learn. The reason im asking this is becuase I think I need a break from .NET and MFC for a little while. Maybe, ATL? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++? Brian Olej29-May-02 16:11 Brian Olej 29-May-02 16:11  Thanks nish, I know this is the wrong forum for this question but I thought I might as well continue with this thread. What exactly is ATL I know it deals with servers or somthing... Re: MC++? Nish Nishant29-May-02 17:25 Nish Nishant 29-May-02 17:25  brian1415 wrote: What exactly is ATL I know it deals with servers or somthing C++ Template based class library that makes COM development easier Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. MC++ wrapping mytesries Nish Nishant27-May-02 20:43 Nish Nishant 27-May-02 20:43  Take a look at this MC++ class :- public __gc class Class2 { public: int Abc() { int y=8; return y; } }; Now here is some C# code that instantiates this class :- Class2 c1 = new Class2(); int y=c1.Abc(); This is confusing to me. Abc() returns an int and not an Int32. It returns a C++ int. Now we know that the C# int actually maps to a .NET Int32. What puzzles me is how the C++ int auto-converts into a C# int which auto-boxes to a Int32! Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ wrapping mytesries Rama Krishna Vavilala28-May-02 2:22 Rama Krishna Vavilala 28-May-02 2:22  There is no mystery C++ .NET C# int -> System.Int32 -> int System::String->System::String->string So C++ compiler actually emits metadata as System.Int32. C# compiler reads System.Int32 and maps it to int. Re: MC++ wrapping mytesries Nish Nishant28-May-02 3:53 Nish Nishant 28-May-02 3:53  Rama Krishna wrote: So C++ compiler actually emits metadata as System.Int32. C# compiler reads System.Int32 and maps it to int. Thanks Rama!!! Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ wrapping mytesries Joao Vaz29-May-02 2:21 Joao Vaz 29-May-02 2:21  int doesn't exist in .NET , the closest is "native int" used with p/invoke and com interop scenarios ... The System.Int32 is the real datatype , int is simply a "alias". For real interop with different languages used with the same project we should use the real ones, not the fakes , it's helps a lot I'm be reading about IL code generation and CLR internals , and in fact .NET is a fascinating beast Microsoft have done a great work Cheers, Joao Vaz A person who is nice to you, but rude to the waiter, is not a nice person - Natalie Portman (Padme/Amidala of Star Wars) Blasted web service stays in memory Nish Nishant27-May-02 19:53 Nish Nishant 27-May-02 19:53  I have this MC++ web service which I consumed from an MC++ client. Nothing fancy. The default HelloWorld thing. Then I tried to make a change to the web service but the build failed and said it couldn't overwrite the files. Finally I found that the problematic soab was Debug\WebServiceTest.pdb. I can't see why this stupid file should be in use any longer. Do I have to restart windows???? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Reading web services Nish Nishant26-May-02 21:42 Nish Nishant 26-May-02 21:42  I was reading Chris Maunder's articles on web services [Read the C# one first and then the MC++ one]. Seems as if web services are pretty straight stuff. But now that we have these services, how do we read them? All this while the screen saver competition was on and I never thought of how the .NET guys are doing it. Mike used MS XML I know. But I forgot about asking what the .NET fellers used. You guys parsed all that XML?? Or was there some kinda XML-to-Object converter available??? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: Reading web services James T. Johnson27-May-02 5:44 James T. Johnson 27-May-02 5:44  .NET managed that for us XML is just encapsulating the data, the Web Service stuff inside .NET parses the data then returns the proper types back to us. If you look at our source tree, the file /Web References/codeProject/Reference.cs shows you the code the was generated to consume the web service. [Edit: DOH! Didn't see that this was in the MC++ forum; I'll leave the post here though because it might help someone ] James Simplicity Rules! Re: Reading web services Nish Nishant27-May-02 14:49 Nish Nishant 27-May-02 14:49  James T. Johnson wrote: If you look at our source tree, the file /Web References/codeProject/Reference.cs shows you the code the was generated to consume the web service. Oh! Okay! James T. Johnson wrote: [Edit: DOH! Didn't see that this was in the MC++ forum; I'll leave the post here though because it might help someone ] The same classes are used right? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: Reading web services James T. Johnson27-May-02 14:53 James T. Johnson 27-May-02 14:53  Nish - Native CPian wrote: The same classes are used right? Yep, should be. The SoapClientWebProtocol yadda yadda yadda does all the dirty work. James Simplicity Rules! Re: Reading web services Nish Nishant27-May-02 19:54 Nish Nishant 27-May-02 19:54  James T. Johnson wrote: The SoapClientWebProtocol yadda yadda yadda does all the dirty work Really complicated bit of code. Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Help Needed zygo650025-May-02 5:24 zygo6500 25-May-02 5:24  Hi, I have 2 questions here. Need your help . Thanking in advance. Question1 Write an application that prints the following diamond shape. You may use output statements that prints a single asterisks ( * ) , a single space or a single newline character . Maximize your use of repetition (with nested For structures) and minimize the number of output statements . The desired output should be as below : * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Question2 Modify the program you wrote in Question 1 to read odd number in the range 1 to 19 to specify the number of rows in the diamond . Your program should then display a diamond of the appropriate size . regards Re: Help Needed Nish Nishant25-May-02 18:30 Nish Nishant 25-May-02 18:30  Did your teacher tell you that you can also do it in Managed C++??? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Help - unmanaged threads and IJW DLL 22-May-02 17:52 22-May-02 17:52  Help! I have this problem. I am linking to an unmanaged DLL using IJW (just including the headers). This DLL is thread-safe and calls must run in a thread. I have used the System::Threading classes to create a thread. However, the thread class I have must be integrated into an unmanaged class that inherits from a base class in the dll: e.g. class A : public QQLListener {} where QQLListener is a class in the unmanaged DLL library. However, the thread must be in class A, but you cannot use System::Threading in an unmanaged class and the class CANNOT be managed because it must inherit from an unmanaged abstract base class. What is a solution? Is there a non .NET framework Threading library? My application cannot use MFC, it must be console mode. I need a threading system that works in unmanaged code in console mode in a .NET managed C++ project. Any ideas? Thanks Re: Help - unmanaged threads and IJW DLL Rama Krishna Vavilala22-May-02 18:25 Rama Krishna Vavilala 22-May-02 18:25  You cannot derive managed class from an unmanaged class. You should do something like this __gc class A { QQLListener* pSl; public: A() { pSl = new QQLListener(); } void ThreadStart() { pSl->threadStart(); } } Re: Help - unmanaged threads and IJW DLL 23-May-02 6:10 23-May-02 6:10  Thanks for the advice, but unfortunately this will not work either. QQLListener is the base class of a subject-observer design pattern, it must be inherited by a derived class so that the callback methods inside it are called. I suppose there is no way to use my old C++ library with the .net framework. I think it's not quite as "compatible" as they claim.

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