[solved] sf::Image::LoadFromFile get error text

[chocobn]

Hello,
When loading some images, sometimes it could not work (wrong file format, image too big, or anything else...). When it doesn't work, is there a way to get the error as a string, in order to display it in a message box?

[Laurent]

You can redirect std::cerr to a string stream.

Code: [Select]

#include <sstream>

std::ostringstream output;
std::cerr.rdbuf(output.rdbuf());

if (!image.LoadFromFile("..."))
{
    std::string error = output.str();
}

I admit this is more a hack than a clean solution, I'll probably think about redesigning the error handling system in SFML.

[chocobn]

Ok thanks! It would indeed be really be useful to have something like sf::Image::GetError or something like that, but while I have something that works, i'm happy   thanks for the trick that's useful (and as far as i have seen, it seems to be handy in lots of other contexts)

[chocobn]

Just a little modification for people that may look for an answer later : std::cerr was not the correct stream. Here is the code with the good one for SFML errors :

Code: [Select]


#include <SFML/System.hpp>
[...]
std::ostringstream output;
sf::Err().rdbuf(output.rdbuf());

    if (!image->LoadFromFile("..."))
    {
std::string error = output.str();
std::cout<< "erreur!"<<error <<std::endl;
    }


Thanks a lot for the help.

[Laurent]

You didn't mention that you are using SFML 2

std::cerr is correct for SFML 1.6.