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Offline Munchor

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Opening a Website from C++
« on: May 14, 2011, 02:57:47 pm »
I was wondering how you open a website in C++. I need it to be cross-platform, no "windows.h" please.

Thanks :)
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Offline ben_g

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Re: Opening a Website from C++
« Reply #1 on: May 14, 2011, 04:48:43 pm »
Maybe it's the easyest to detect the platform, and make a function for every platform
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Offline Munchor

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Re: Opening a Website from C++
« Reply #2 on: May 14, 2011, 04:56:45 pm »
Quote from: ben_g on May 14, 2011, 04:48:43 pm
Maybe it's the easyest to detect the platform, and make a function for every platform

Well, there are lots of platforms (Windows, Linux, Mac, Solaris) and I hope there's a way to do this.

In Python, webbrowser.open("url") will open in the default browser on any platform so I guess there is a way to do that in C/C++.
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Offline Deep Toaster

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Re: Opening a Website from C++
« Reply #3 on: May 14, 2011, 05:01:31 pm »
That's because Python gets interpreted the same way, remember. C++ is compiled to assembly, which is different on each OS. I don't think there's a real cross-platform way to do it. Since you're going to have to release separate versions for each platform anyway (you can't release an .exe for Mac users, for instance) what about keeping different versions for each? I think that's what most devvers do.

I don't know C++ though, so I might be wrong.
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Offline Munchor

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Re: Opening a Website from C++
« Reply #4 on: May 14, 2011, 05:15:51 pm »
I guess I'll check that later, it's not a priority at the moment, but I hope there's a library or something.

Anybody has had to do this before?
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Re: Opening a Website from C++
« Reply #5 on: May 14, 2011, 06:07:51 pm »
just make for windows or Linux for now, and later do it hardcore by using '#ifdef', '#elseif', '#endif' expressions to keep it as one source file ;)

And, for start, windows:

Code: [Select]
#include <windows.h>

using namespace std;

void main()
{
   ShellExecute(NULL, "open", "http://www.thebest404pageever.com/swf/index.php", NULL, NULL, SW_SHOWNORMAL);
}
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Offline Munchor

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Re: Opening a Website from C++
« Reply #6 on: May 14, 2011, 06:27:47 pm »
Well I really need a Linux one then because the Windows one is easily found with Google. Who knows how to or had better success searching?
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Offline Jim Bauwens

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Re: Opening a Website from C++
« Reply #7 on: May 14, 2011, 06:38:46 pm »
You need to execute xdg-open http://example.com . I think you can do this with os.system (or whatever is used to run shell commands)
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Offline Munchor

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Re: Opening a Website from C++
« Reply #8 on: May 14, 2011, 06:44:19 pm »
Thanks a lot jimbauwen :D I'll find the shell executing code for C++ (os.system() is Python :P))
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Offline alberthrocks

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Re: Opening a Website from C++
« Reply #9 on: May 14, 2011, 07:24:44 pm »
Quote from: Scout on May 14, 2011, 04:56:45 pm
Quote from: ben_g on May 14, 2011, 04:48:43 pm
Maybe it's the easyest to detect the platform, and make a function for every platform

Well, there are lots of platforms (Windows, Linux, Mac, Solaris) and I hope there's a way to do this.

In Python, webbrowser.open("url") will open in the default browser on any platform so I guess there is a way to do that in C/C++.
Quote from: Deep Thought on May 14, 2011, 05:01:31 pm
That's because Python gets interpreted the same way, remember. C++ is compiled to assembly, which is different on each OS. I don't think there's a real cross-platform way to do it. Since you're going to have to release separate versions for each platform anyway (you can't release an .exe for Mac users, for instance) what about keeping different versions for each? I think that's what most devvers do.

I don't know C++ though, so I might be wrong.

Python's webbrowser module is in fact, pure source.
http://hg.python.org/cpython/file/d71476b9a55d/Lib/webbrowser.py

Technically, if you translated all of this source code (by HAND, not by program, since there is no such thing as automated Python => C++), you could probably achieve a Python webbrowser-like library for inclusion into your program. :) Of course, translating (and possibly writing a LOT of code) is a whole different thing...
« Last Edit: May 14, 2011, 07:24:52 pm by alberthrocks »
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Offline Munchor

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Re: Opening a Website from C++
« Reply #10 on: May 15, 2011, 03:47:36 am »
Woah, the webbrowser module is in Python? Had no idea.
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Offline broooom

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Re: Opening a Website from C++
« Reply #11 on: May 15, 2011, 07:27:31 am »
You can use cURL. Or just use sockets to write your own request over HTTP.

Quote from: Ashbad on May 14, 2011, 06:07:51 pm
just make for windows or Linux for now, and later do it hardcore by using '#ifdef', '#elseif', '#endif' expressions to keep it as one source file ;)

And, for start, windows:

Code: [Select]
#include <windows.h>

using namespace std;

void main()
{
   ShellExecute(NULL, "open", "http://www.thebest404pageever.com/swf/index.php", NULL, NULL, SW_SHOWNORMAL);
}
Sorry to say, but that is just a horrible way. Also, void main()? I'm not even sure most compilers will accept that.
« Last Edit: May 15, 2011, 07:38:44 am by broooom »
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Offline Munchor

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Re: Opening a Website from C++
« Reply #12 on: May 15, 2011, 07:28:41 am »
I managed to open it, but only works in Linux. I found a Windows-only way too and can probably find a Mac too. Maybe I'll go with try blocks I don't know because it's impossible to find out the user OS during runtime.
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Offline broooom

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Re: Opening a Website from C++
« Reply #13 on: May 15, 2011, 07:39:14 am »
Quote from: Scout on May 15, 2011, 07:28:41 am
I managed to open it, but only works in Linux. I found a Windows-only way too and can probably find a Mac too. Maybe I'll go with try blocks I don't know because it's impossible to find out the user OS during runtime.
You'll have to compile seperately anyway, so it'll be known at compile time.
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Offline Munchor

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Re: Opening a Website from C++
« Reply #14 on: May 15, 2011, 07:40:04 am »
Quote from: broooom on May 15, 2011, 07:39:14 am
Quote from: Scout on May 15, 2011, 07:28:41 am
I managed to open it, but only works in Linux. I found a Windows-only way too and can probably find a Mac too. Maybe I'll go with try blocks I don't know because it's impossible to find out the user OS during runtime.
You'll have to compile seperately anyway, so it'll be known at compile time.

Yeah I figured out I'll have to make separate releases.
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