Tutorial "Hello world!" crashes

[Brotkrumen]

Hey!

I have tried to set up Irrlicht. I am on a Win7 x64 machine and am using eclipse indigo cdt + mingw.

I tried following this set up tutorial: http://irrlicht.sourceforge.net/forum/v ... hp?t=25355 and then compile the hello world tutorial: http://irrlicht.sourceforge.net/docu/example001.html]the tutorial.
It does compile, no error messages, dll is in the folder of the exe etc, but when it hits

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device->setWindowCaption(L"Hello World! - Irrlicht Engine Demo");

an empty window pops up and crashes.
The pre-compiled tutorial.exe works, so it shouldn't be a driver problem.

Is that a known bug? Am I missing something? Any help would be appreciated.

Thank you!

[randomMesh]

Run the program from the command line and have a look at the debugging output. I guess it can't find your media due to wrong paths.

[Brotkrumen]

All it gives me is the build version of irrlicht and my operating system. then it crashes. I reproduced it with the same configuration on my xp machine so it is not win7 specific.

Guess the error is somewhere between keyboard and chair, so I'll just do what any decent human would do: Delete everything and start from scratch. Maybe even try code::blocks instead

[CuteAlien]

Set a breakpoint in the first line in main to see if it reaches that. And if it does then just step through and see where it crashes. Debuggers are there to make your life easier :-)

(In case you are not familiar with the debugger - learn that first - it's simple and worth it. In an IDE it's usually as simple as clicking on a line and telling the IDE to set a breakpoint. That's already enough to make it stop at that line when it runs into it. And then you have some command to go to the next line which is called stepping and that way you can just go through your application line by line).

[Brotkrumen]

The debugger gets to:

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device->setWindowCaption(L"Hello World! - Irrlicht Engine Demo");

There, trying to step further won't work and all I can do is stop the program.

Same program compiled in code::blocks runs fine. I guess I failed to set up eclipse correctly.

Thanks for your help, btw.

[Bl00drav3n]

Check if device is NULL.

[Brotkrumen]

The code is:

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        IrrlichtDevice *device =
                createDevice( video::EDT_SOFTWARE, dimension2d<u32>(640, 480), 16,
                        false, false, false, 0);
 
        if (!device)
                return 1;

So if the device was 0, it wouldn't pass this part, right?

I tried example 2 now and here at

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video::IVideoDriver* driver = device->getVideoDriver();

the debugger gives me Segmentation fault with the message "No source available for "irr::CIrrDeviceStub::getVideoDriver() at 0x634c743e" "

[CuteAlien]

How about the console log? Any warnings/errors there? (Maybe start from the command-line if your IDE doesn't show console output, I have no experience with Eclipse so I don't know how that is handled there).

[zerochen]

he already checked this. i think you linked the wrong lib and used a different dll. are you sure that you used the 64bit dll?

[Brotkrumen]

Thank's everyone for the suggestions.

@zerochen
There is one irrlicht.dll in the irrlicht\bin\win32-gcc folder. This is the one i am using. Should there be a 64bit version of that one around? I thought you only need a 64bit .dll if you use a 64bit compiler. Anyways, I tried the same setup on an 32-bit xp machine with the same results.
I do have the 32bit versions of mingw, eclipse and java (required for eclipse) so it should all go smoothlike.

[CuteAlien]

Yeah, you need 64-bit environment for 64-bit versions (and I suspect they would be written into Win32-gcc as well and don't have yet an own target as all settings are identical anyway).

It all sounds a lot like a version mixup but as I never used Eclipse with Irrlicht I can't really help much I fear.

[Brotkrumen]

The irrlicht.dll is used at runtime, right? the pre-compiled hello world.exe works...

Thanks anyway. Its working on codeblocks so all is well.
I'll try to set it up on my xp machine again. Maybe I made a different mistake there...

[Virion]

I think the precompiled hello_world.exe and irrlicht.dll are both 32bit. 64bit machine can run 32bit exe which is why you have no problem running it. however, the exe that you compiled is 64bit, but somehow the irrlicht.dll is 32bit which does not compatible with your exe. must compile your own irrlicht.dll (64bit) in order to run it correctly.