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  • Anil Gupte/iCinema.com
    #1

    Newbie Question

    I am very new to C++ (Actually have dabbled in it before but nevermind).
    This is my first appliccation that I started from scratch. I created a
    Console Application in VC 2005 and this is what I have so far:
    using namespace System;

    using namespace System::IO;

    #include "stdafx.h"

    int _tmain(int argc, _TCHAR* argv[])

    {

    DirectoryInfo* di = new DirectoryInfo(" .");

    String* files[] = Directory::GetF iles(di->ToString()];

    return 0;

    }

    When I compile I get lots of errors. Even if I comment out the String*
    files line I get at least three errors. Here they are:

    Error 1 error C2065: 'DirectoryInfo' : undeclared identifier
    Error 2 error C2065: 'di' : undeclared identifier
    Error 3 error C2061: syntax error : identifier 'DirectoryInfo'
    Error 4 error C2065: 'String' : undeclared identifier
    Error 5 error C2065: 'files' : undeclared identifier
    Error 6 error C2059: syntax error : ']'
    Error 7 error C2653: 'Directory' : is not a class or namespace name


    Any help appreciated. Thanx in advance.
    --
    Anil Gupte
    Home - k.e.e.n. inc.
    https://www.keeninc.net
    Innovate with UsLeading the Way in Advanced Technology Solutions Discover state-of-the-art services in logistics, databases, and AI designed for evolving

    www.icinema.com
    https://www.wizo.tv



    Tags: None
    • Giovanni Dicanio
      #2
      Re: Newbie Question


      "Anil Gupte/iCinema.com" <anil-list@icinema.co mha scritto nel messaggio
      news:%23%23vddC lPJHA.2720@TK2M SFTNGP03.phx.gb l...
      This is my first appliccation that I started from scratch. I created a
      Console Application in VC 2005 and this is what I have so far:
      [...]
      When I compile I get lots of errors.
      This code compiles fine for me:

      <code>

      #include "stdafx.h"

      using namespace System;
      using namespace System::IO;

      int main(array<Syst em::String ^^args)
      {
      Console::WriteL ine(L"Hello World");

      DirectoryInfo ^ di = gcnew DirectoryInfo(" .");
      array< String^ >^ files = Directory::GetF iles( di->ToString() );

      return 0;
      }

      </code>

      Note that to use the .NET Framework classes from C++, you should use C++/CLI
      extensions of the C++ language.
      In this case, instead of native pointers (*), you should have managed
      references (^), instead of 'new' you should use 'gcnew', etc.

      Giovanni


        Comment

        • Anil Gupte/iCinema.com
          #3
          Re: Newbie Question

          Ok that was completely Italian to me. Just joking, no offence. :-)

          Anyway, I copy-pasted your code and still gives me lots of errors.
          Error 1 error C2065: 'array' : undeclared identifier
          Error 2 error C2653: 'System' : is not a class or namespace name
          Error 3 error C2065: 'String' : undeclared identifier
          Error 4 error C2059: syntax error : '>'
          Error 5 error C2143: syntax error : missing ';' before '{'
          Error 6 error C2447: '{' : missing function header (old-style formal list?)

          But where can I read more about use CLI extensions and managed references?

          Thanx,
          --
          Anil Gupte
          Home - k.e.e.n. inc.
          https://www.keeninc.net
          Innovate with UsLeading the Way in Advanced Technology Solutions Discover state-of-the-art services in logistics, databases, and AI designed for evolving

          www.icinema.com
          https://www.wizo.tv

          "Giovanni Dicanio" <giovanniDOTdic anio@REMOVEMEgm ail.comwrote in message
          news:OmwKAnlPJH A.1164@TK2MSFTN GP02.phx.gbl...
          >
          "Anil Gupte/iCinema.com" <anil-list@icinema.co mha scritto nel messaggio
          news:%23%23vddC lPJHA.2720@TK2M SFTNGP03.phx.gb l...
          >
          >This is my first appliccation that I started from scratch. I created a
          >Console Application in VC 2005 and this is what I have so far:
          [...]
          >When I compile I get lots of errors.
          >
          This code compiles fine for me:
          >
          <code>
          >
          #include "stdafx.h"
          >
          using namespace System;
          using namespace System::IO;
          >
          int main(array<Syst em::String ^^args)
          {
          Console::WriteL ine(L"Hello World");
          >
          DirectoryInfo ^ di = gcnew DirectoryInfo(" .");
          array< String^ >^ files = Directory::GetF iles( di->ToString() );
          >
          return 0;
          }
          >
          </code>
          >
          Note that to use the .NET Framework classes from C++, you should use
          C++/CLI extensions of the C++ language.
          In this case, instead of native pointers (*), you should have managed
          references (^), instead of 'new' you should use 'gcnew', etc.
          >
          Giovanni
          >
          >

            Comment

            • Giovanni Dicanio
              #4
              Re: Newbie Question


              "Anil Gupte/iCinema.com" <anil-list@icinema.co mha scritto nel messaggio
              news:urVMJ4lPJH A.576@TK2MSFTNG P06.phx.gbl...
              I copy-pasted your code and still gives me lots of errors.
              Error 1 error C2065: 'array' : undeclared identifier
              Error 2 error C2653: 'System' : is not a class or namespace name
              Error 3 error C2065: 'String' : undeclared identifier
              Error 4 error C2059: syntax error : '>'
              Error 5 error C2143: syntax error : missing ';' before '{'
              Error 6 error C2447: '{' : missing function header (old-style formal
              list?)
              You can start creating a new C++/CLI project with Visual Studio 2008 using
              this sequence:

              New Project | Visual C++ | CLR | CLR Console Application

              And you can copy-and-paste the code I posted there.

              (Before posting that code, I built it on my VS2008 IDE.)
              But where can I read more about use CLI extensions and managed references?
              Nish wrote a book about that topic:

              http://www.amazon.com/CLI-Action-Man.../dp/1932394818

              He masters the C++/CLI extensions, and I think that you can find interesting
              information on his blogs and his CodeProject articles, too.

              I hope that my "Italglish" is clear enough... ;)

              Giovanni



                Comment

                • Anil Gupte/iCinema.com
                  #5
                  Re: Newbie Question

                  Thanx! Your english is very clear. I had trouble understanding the
                  technical stuff. Thanx for your help, I will do some reading on this.

                  --
                  Anil Gupte
                  Home - k.e.e.n. inc.
                  https://www.keeninc.net
                  Innovate with UsLeading the Way in Advanced Technology Solutions Discover state-of-the-art services in logistics, databases, and AI designed for evolving

                  www.icinema.com
                  https://www.wizo.tv

                  "Giovanni Dicanio" <giovanniDOTdic anio@REMOVEMEgm ail.comwrote in message
                  news:%23h8UI%23 lPJHA.4760@TK2M SFTNGP02.phx.gb l...
                  >
                  "Anil Gupte/iCinema.com" <anil-list@icinema.co mha scritto nel messaggio
                  news:urVMJ4lPJH A.576@TK2MSFTNG P06.phx.gbl...
                  >
                  >I copy-pasted your code and still gives me lots of errors.
                  >Error 1 error C2065: 'array' : undeclared identifier
                  >Error 2 error C2653: 'System' : is not a class or namespace name
                  >Error 3 error C2065: 'String' : undeclared identifier
                  >Error 4 error C2059: syntax error : '>'
                  >Error 5 error C2143: syntax error : missing ';' before '{'
                  >Error 6 error C2447: '{' : missing function header (old-style formal
                  >list?)
                  >
                  You can start creating a new C++/CLI project with Visual Studio 2008 using
                  this sequence:
                  >
                  New Project | Visual C++ | CLR | CLR Console Application
                  >
                  And you can copy-and-paste the code I posted there.
                  >
                  (Before posting that code, I built it on my VS2008 IDE.)
                  >
                  >But where can I read more about use CLI extensions and managed
                  >references?
                  >
                  Nish wrote a book about that topic:
                  >
                  http://www.amazon.com/CLI-Action-Man.../dp/1932394818
                  >
                  He masters the C++/CLI extensions, and I think that you can find
                  interesting information on his blogs and his CodeProject articles, too.
                  >
                  I hope that my "Italglish" is clear enough... ;)
                  >
                  Giovanni
                  >
                  >
                  >

                    Comment

                    • Pavel A.
                      #6
                      Re: Newbie Question

                      "Anil Gupte/iCinema.com" <anil-list@icinema.co mwrote in message
                      news:##vddClPJH A.2720@TK2MSFTN GP03.phx.gbl...
                      I am very new to C++ (Actually have dabbled in it before but nevermind).
                      This is my first appliccation that I started from scratch.
                      That's already wrong. Being very new in something, you start from samples,
                      not from scratch. And there's lots of samples in the VS and MSDN site.

                      --PA


                        Comment

                        • Anil Gupte/iCinema.com
                          #7
                          Re: Newbie Question

                          Yeah, I have done stuff with samples and tuorials, but this was my first try
                          at doing a blank sheet. Maybe I will revert to using an example as a
                          template.

                          Thanx,
                          --
                          Anil Gupte
                          Home - k.e.e.n. inc.
                          https://www.keeninc.net
                          Innovate with UsLeading the Way in Advanced Technology Solutions Discover state-of-the-art services in logistics, databases, and AI designed for evolving

                          www.icinema.com
                          https://www.wizo.tv

                          "Pavel A." <pavel_a@12fast mail34.fmwrote in message
                          news:uqJrjWsPJH A.4152@TK2MSFTN GP04.phx.gbl...
                          "Anil Gupte/iCinema.com" <anil-list@icinema.co mwrote in message
                          news:##vddClPJH A.2720@TK2MSFTN GP03.phx.gbl...
                          >I am very new to C++ (Actually have dabbled in it before but nevermind).
                          >This is my first appliccation that I started from scratch.
                          >
                          That's already wrong. Being very new in something, you start from samples,
                          not from scratch. And there's lots of samples in the VS and MSDN site.
                          >
                          --PA
                          >
                          >

                            Comment

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