Issue when trying to use irrlicht in a .net managed form.

[Murdock_SE]

Greetings Irrlicht gurus:

I am getting a very odd error when trying to execute the following code. I get through compiling and linking this just fine in Visual C++ 2005 Express. Everything works fine right up to trying to execute the first line of Irrlicht.NET based code.

I keep getting an error of "An unhandled exception of type 'System.IO.FileNotFoundException' occurred in System.Windows.Forms.dll

Additional information: The specified module could not be found. (Exception from HRESULT: 0x8007007E)"


The code is below, this is within a windows button click event handler, and if I comment it out I do not get any errors. Also, I can do things like this->irrPanel->Focused = true;
this->Close();
etcetera. so the windows form itself is working just fine. What kills me is this compiles fine. I can see all of the relative object types, blah blah so I'm pretty darn sure I have all of my project directories set properly.

Any thoughts? This is driving me nuts, as it took a while for me to take the forum example vb .net code to parse it over to vc++ managed.


Irrlicht::Core::Dimension2D^ dim = gcnew Irrlicht::Core::Dimension2D(0,0);

IrrlichtDevice^ device = gcnew IrrlichtDevice(Irrlicht::Video::DriverType::OPENGL,
*dim , 16, false, false, false, false, this->irrPanel->Handle);

while (device->Run()){
if(this->irrPanel->Focused)
{
Irrlicht::Video::Color^ mycolor = gcnew Irrlicht::Video::Color();
mycolor->Set(0,000,100,100);
device->VideoDriver->BeginScene(true, true, *mycolor);
device->SceneManager->DrawAll();
device->VideoDriver->EndScene();
}
}

[Murdock_SE]

I can dupe this with the one single line of irrlicht related code:

Irrlicht::Core::Dimension2D^ dim = gcnew irrlicht::Core::Dimension2D(0,0);

I can also put this in the initializecomponent of a main form, so it has nothing to do with a windows event.

It has to be library related, but as I said before, the dll I added as a reference using browse. And I see the irrlicht.net.dll in my debug and release folders. So I know it's referenced properly. Also, I can use intellisense and see the object tree, and its methods, etcetera... Also, it compiles fine! So this is killin me.

Also, I do have "using Irrlicht;" in the top of the said file.

[Murdock_SE]

I've found the answer myself:

Anyone trying to do a .net managed code windows form to embed an irrlicht scene, make sure to ALSO COPY OVER irrlicht.dll into your projects /bin/ folder. By default, when you add a reference to irrlicht.net.dll, it only copies over that DLL. But it is a wrapper, and still needs irrlicht.dll present in the same folder.

Hopefully this helps other newbies like me that have existing .net managed c++ projects that wish to use embeded irrlicht 3d within; and you don't lose more hair like I did pulling it out trying to figure out why this was compiling but throwing filenotfound errors.

Regards. Moderators, feel free to move this to an applicable topic at your will.

[simdev]

Hi All,
I want to use irrlicht on a windows form appllication

Currently I am implementing my code on irrlicht CP with C# but the point is due to the wrapper code, its more than half slower for my current code comparing to C++.

Is it possible to use irrlicht (without any wrapper code) in managed C++ on a windows form application ?

Thanks