how to call webservice from VC++ 5.0

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I need to call a webservice from a C++ 5.0 application and get the return value.

Is this possible, and what is the best route to go?

I have ZERO experience with webservices, and am a little afraid about the limitations of working in 5.0.

Please Help! I don't want to start going too far down a path until I know it's the correct path. Thanks much,

AmVal

Posted 25-Apr-11 11:29am

AmVal

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-04-25T11:50:00

Solution 1

You can start here:
http://msdn.microsoft.com/en-us/library/2k53kft2(v=vs.80).aspx[^].

You can find this discussion useful:
http://weblogs.asp.net/israelio/archive/2006/06/11/How-to-Consume-WebService-via-unmanaged-C_2B002B00_.aspx[^].

You can search more:
http://en.lmgtfy.com/?q=(call+OR+consume)+webservice+%22C%2B%2B%22[^].

If gives over 6 million results.

—SA

Posted 25-Apr-11 11:50am

Sergey Alexandrovich Kryukov

Comments

Monjurul Habib 25-Apr-11 18:21pm

nice links.my5

Sergey Alexandrovich Kryukov 25-Apr-11 18:33pm

Thank you, Monjurul.
--SA

Niklas L 26-Apr-11 4:26am

Good links, but the first two does not apply to VS VC 5.0. None the less a 5.

Sergey Alexandrovich Kryukov 26-Apr-11 11:35am

Than you.
And thank you for pointing out the problem with version. It was my concern but I wasn't sure.
--SA

Albert Holguin · Answer 2 · 2011-04-25T14:18:00

Solution 2

Try gSoap for SOAP based web-service, its very easy to use...
http://gsoap2.sourceforge.net/[^]

Posted 25-Apr-11 14:18pm

Albert Holguin

Updated 25-Apr-11 14:22pm

v2

Comments

Sergey Alexandrovich Kryukov 26-Apr-11 11:36am

My 5.
--SA

Niklas L · Answer 3 · 2011-04-25T22:24:00

Solution 3

A webservice is just a fancy name for something very simple. Sending/receiving XML strings over TCP/IP. All you really need in its simplest form is a socket for communication and an XML-formatter/parser. The XML-formatting can be as easy as sending a hard coded XML-string. Parsing might require a bit more work. Using libraries for this is a good idea.

Posted 25-Apr-11 22:24pm

Niklas L

Comments

Sergey Alexandrovich Kryukov 26-Apr-11 11:37am

Good point, a 5. (The whole problem is actually reduced to what library to use.)
--SA

AmVal · Answer 4 · 2011-05-04T09:49:00

Thanks to everyone for the links and suggestions.

I am pursuing gSOAP, and it looks like it will work.

I found the CurrencyConverter example helpful:
CurrencyConvertor: How to Use gSOAP and Webservices, Part One[^]
CurrencyConvertor - How use gSOAP and WebServices - Part 2 Doing the first WS client.[^]

For anyone else trying to do this with VC++ 5.0, the only changes needed to get the sample app to compile are:

1. in stdafx.h, comment out the line #include <afxdtctl.h>
2. in stdsoap2.h, add these two lines to the top of the file:

#define LONG64 long
#define ULONG64 unsigned LONG64

I am also able to successfully call this webservice from my 'real' application... So now just waiting for our 'real' webservice to be written. Hopefully I'll be able to call that one and get response just as easily, or I'll be back!

Thanks much!