C++11 , How to get the entire NYSE listing daily?

[rollerbladegirl]

In C++11.

On a Windows computer.

How do I add to my program a way for it to download from the internet the entire NYSE listing daily?

I am still learning C++11.

If you give an example that is stable, and it is really simple, then I can go from there.

Code that is baby level simple please.

Thanks.

[SioSio]

This program to get the source by specifying the URL and save it in a binary file.(Only Windows)

#include "pch.h"
#include <iostream>
 
#include <windows.h>
#include <stdio.h>
#include <wininet.h>
#include <tchar.h>
#include <locale.h>
 
#pragma comment(lib,"wininet.lib")
 
//      Get data from the specified URL and save it in a file in binary
int webBinGet(HINTERNET hInet, TCHAR* url, FILE* fp);
 
int _tmain(int argc, TCHAR** argv) {
    HINTERNET hInet;
    FILE* fp;
 
    //      Sets the locale to display UNICODE characters correctly on stderr
    _tsetlocale(LC_ALL, _TEXT(""));
 
    if (argc != 3) {
        _ftprintf(stderr, _TEXT("Usage : This_Prog_Name.exe [url] [save file name]\n"));
        return 1;
    }
    //Start Internet connect(WinInet)
    hInet = InternetOpen(TEXT("wxz123"),
        INTERNET_OPEN_TYPE_PRECONFIG,
        NULL, NULL, 0);
    if (hInet == NULL) {
        _ftprintf(stderr, _TEXT("Failure the handl eacquisition\n"));
        return 2;
    }
    if (_tfopen_s(&fp, argv[2], TEXT("wb"))) {
        InternetCloseHandle(hInet);
        _ftprintf(stderr, _TEXT("File Open Error %s\n"), argv[2]);
        return 3;
    }
    if (webBinGet(hInet, argv[1], fp) < 0)
        _ftprintf(stderr, _TEXT("Could not load source from internet successfully\n"));
    InternetCloseHandle(hInet);
    fclose(fp);
    return 0;
}
 
//      Get HTML source from the URL and save binary file.
 
int webBinGet(HINTERNET hInet, TCHAR* url, FILE* fp) {
    char buf[1024];
    HINTERNET hUrl;
    //HTTP session Start,and URL open.
    hUrl = InternetOpenUrl(hInet, url, NULL, 0, 0, 0);
    if (hUrl == NULL) {
        _ftprintf(stderr, _TEXT("URL Open Error %s\n"), url);
        return -1;
    }
    //Read to the end
    int len;
    int size = 0;
    for (;;) {
        InternetReadFile(hUrl, buf, sizeof(buf), (LPDWORD)&len);
        if (len <= 0)
            break;
        fwrite(buf, sizeof(buf[0]), len, fp);
        size += len;
    }
    InternetCloseHandle(hUrl);
    return len;     //      Return File size.
}
 

After that, create a part to find your required tag and get the value in bin file.

If you run at a fixed time every day,
Use time scheduling(Wiindows).

[rollerbladegirl]

SioSio YES !

Thank you.

And it uses Unicode ! Yes again! Again Thank You. I wanted this program to be usable by any Unicode user. I have been starting with #define _UNICODE and #define UNICODE.

Direct, to the point, a bit of a stretch to keep up with it, but it looks like code that I can study and learn from.

OH, I LIKE THIS SITE !

I see that you use #include "pch.h". I have read about this and it seems to be used in some examples with Visual Studio. Does that mean that I have to use VS to use this code.

I am using CODE::BLOCKS 17.12 and GNU GCC Compiler.

My main is int WINAPI WinMain(...). I am compiling to a Windows GUI. I hope that if I study your code example that I can use it. It looks nice.

And, with #include "pch.h", does that mean that, in my final compiled program, that my headers will be compiled separately? I wanted the entire program to be one single executable with no dlls, etc. I have been using #define IDC_STATIC (-1). Or, does #include "pch.h" just make the compilation faster. Can I use this code without #include "pch.h"?

Really, Thanks SioSio.

[rollerbladegirl]

I am looking up your code (parts) and studying it and it seems to be written for Visual Studio. I am not getting the following to work:

    if (_tfopen_s(&fp, argv[2], TEXT("wb"))) {
        InternetCloseHandle(hInet);
        _ftprintf(stderr, _TEXT("File Open Error %s\n"), argv[2]);
        return 3;

I looked up _tfopen_s and it does not seem to work outside of Visual Studio. I am trying to find how to do the VS parts in C or C++ by itself without VS.

Thanks.

[SioSio]

Yes, this source was written in VS.

#include "pch.h" is not required if the environment is not VS.

In Visual Studio, fopen cannot be used as it is (it is necessary to write #pragma warning (disable: 4996) at the beginning of the source), so use _fopen_s.

_tfopen_s（＆fp、argv [2]、TEXT（ "wb"））
 
fp = fopen(argv[2], "wb");
 

[rollerbladegirl]

Thank you SioSio.

Last summer 2019 I decided to learn C++11.

I have no interest in using Visual Studio (at this time).

As a new C++ programmer, it has taken me sometimes hours to convert VS stuff to C++ code. Now I have been trying to stay away from VS studio stuff.

Your offer to help me with VS code was nice. I appreciate the offer. Thank you. But, I am looking for C++11 code.

At your level of expertise, maybe you can supply that code in C++? I can use any version of C++ up to 11 and I can use straight C. Would you please help me with doing this in C++ (up to C++11)?

Thank you SioSio.