Managed C++/CLI

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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. Re: Help - unmanaged threads and IJW DLL Rama Krishna Vavilala23-May-02 6:08 Rama Krishna Vavilala 23-May-02 6:08  Anonymous wrote: . I think it's not quite as "compatible" as they claim. The stuff is compatible the exact way of doing things depends on a case to case basis. If you provide little more details then probably I could help. Re: Help - unmanaged threads and IJW DLL Nish Nishant22-May-02 18:48 Nish Nishant 22-May-02 18:48  Anonymous wrote: Is there a non .NET framework Threading library? My application cannot use MFC You can use the API. CreateThread(). Or CRT. _beginthreadex() Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. MC++ control in a C# form :-( Nish Nishant22-May-02 15:58 Nish Nishant 22-May-02 15:58  I have an MC++ written control. I have added it to the C# toolbox. When I try to insert it into the form [by drag/drop] I get a message box with this *very* informative message :- Exception from HRESULT: 0x80131019 Blast!!! Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ control in a C# form :-( Rama Krishna Vavilala22-May-02 15:52 Rama Krishna Vavilala 22-May-02 15:52  I just wrote a message to you about that. What a coincidence? I did not know that you would land into this problem so soon. Ok this is interseting you can have a look at my article Developing windows forms control with MFC. Basically you have to click on the reference and set copy local to false. Rama Krishna Self professed King of Managed C++ Re: MC++ control in a C# form :-( Nish Nishant22-May-02 17:07 Nish Nishant 22-May-02 17:07  Rama Krishna wrote: Basically you have to click on the reference and set copy local to false. Cool! Also had to copy the DLL to the output directory Rama Krishna wrote: Rama Krishna Self professed King of Managed C++ Maybe not kind yet, but you are the crowned prince Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ control in a C# form :-( - Part 2 Nish Nishant22-May-02 15:59 Nish Nishant 22-May-02 15:59  What's worse is that I caneasily add the control via code. It's just that the form designer refuses to understand the control Is there any known issue where the C# form designer cannot understand a control made with MC++ ??? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. MC++ controls Nish Nishant22-May-02 15:25 Nish Nishant 22-May-02 15:25  Hello, This is with regard to writing Forms controls using MC++. Has anyone made any? If so, what extra steps did they have to take? Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ controls Nish Nishant22-May-02 15:30 Nish Nishant 22-May-02 15:30  These are the steps I have done right now :- #using "..\testcontrol\Debug\testcontrol.dll" .... using namespace testcontrol; .... Then I have a member in my class as follows :- Class1 *m_c; This is all okay. Now if I do this anywhere :- m_c = new Class1(); I get this exception when I run it :- System.IO.FileNotFoundException Blast!!!! It found the file alright!!! Else how would it even compile properly Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ controls Rama Krishna Vavilala22-May-02 15:38 Rama Krishna Vavilala 22-May-02 15:38  Place testcontrol.dll in the output directory of the application which you are building. Re: MC++ controls Nish Nishant22-May-02 15:54 Nish Nishant 22-May-02 15:54  Just did that Rama Sucks huh? I thought the #using would tell the blasted compiler to tell the blasted linker to look for it there Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him. Re: MC++ controls Rama Krishna Vavilala22-May-02 15:50 Rama Krishna Vavilala 22-May-02 15:50  It's all assembly search policy. I dream to write an article on that. You should be glad that you are not writing the client app in C# in that case there are more interesting issues involoved - C# with MC++. Re: MC++ controls Nish Nishant22-May-02 18:16 Nish Nishant 22-May-02 18:16  Rama Krishna wrote: You should be glad that you are not writing the client app in C# in that case there are more interesting issues involoved - C# with MC++. Not so glad anymore... Nish Regards, Nish Native CPian. Born and brought up on CP. With the CP blood in him.

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