A simple one...(I hope)

[Bob Finnie]

Hi Folks,
Currently I use the following code to suppress the console output window:

Code: Select all

#pragma comment(linker, "/SUBSYSTEM:windows /ENTRY:mainCRTStartup")

Is there a way to remove the window as above but pipe the output that would normally go there into a file? A kind of running log file.

Any help would be much appreciated

Regards,
Bob

[wITTus]

Yes you can tie cout etc. to an ofstream IIRC. See the c++ stdlib documentation. If you use only the Irrlicht Logger, it's even easier:

- Write a class which inherits from IEventReceiver
- Then in OnEvent(const SEvent& Event), you need to test for Event.EventType == EET_LOG_TEXT_EVENT
- If your test is true, you'll find the string in Event.LogEvent.Text

[FuzzYspo0N]

Code: Select all

void logToFile(const c8* str)
{
			if(GNULLDevice)
			{
				io::IWriteFile* wFile = GNULLDevice->getFileSystem()->createAndWriteFile(mFilename.c_str(), true);
				io::IXMLWriter* xmllol = GNULLDevice->getFileSystem()->createXMLWriter(wFile);
				core::stringw* p = new core::stringw(L"");
				p->append(str);
				xmllol->writeText(p->c_str());
				xmllol->writeLineBreak();
				delete p;
				p = NULL;
			}
}

heres something that might help. I use xml writer cos its easier.

Edit : GNULLDevice is a IrrlichtDevice created with a EDT_NULL_DRIVER

[Bob Finnie]

Thanks both of you for that.
Solved!

[cobra]

It's even simpler than that. Somewhere at the beginning of your code, put this:

Code: Select all

std::freopen("test.txt", stdout);
std::freopen("test2.txt, stderr);

Anything you use to normally print to a console window using printf or cout will now be put into this file.

[vitek]

There are some caveats to that trick though. I know it won't work if the Irrlicht library and the user code link a different version of the C library (i.e., Irrlicht compiles with /MD and user code compiles with /MT or vice-versa). I think you might also run into troubles if running code that is a pure windows app, but I'm not certain about that.

Travis