irrXML tutorial

[monkeycracks]

Can someone write a C++ tutorial on how to use IrrXML to read and write XML files?
I've tried and failed.

[BlindSide]

Can someone write a C++ tutorial on how to use IrrXML to read and write XML files?
I've tried and failed.

There is already one in the documentation lol. BUT it is flawed, it gives you some wrong functions for initializing the reader I think. Let me find some source code that will help you..

Code: Select all

IXMLReader* xml = device->getFileSystem()->createXMLReader("config.xml");

	int vdriver, xres, yres, bits;
	bool fullscreen;

	while(xml && xml->read())
	{ 
		if (core::stringw("config") == xml->getNodeName())
		{
		vdriver = xml->getAttributeValueAsInt(L"driver");
		xres = xml->getAttributeValueAsInt(L"xres");
		yres = xml->getAttributeValueAsInt(L"yres");
		bits = xml->getAttributeValueAsInt(L"bits");
		fullscreen = xml->getAttributeValueAsInt(L"fullscreen");
		}
	}

Here i create a reader and read some configuration values from an XML file and save them to those variables I created. The file looks like this:

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<?xml version="1.0"?>
<!-- Driver Settings Help: 1 = Direct3D9, 2 = Direct3D8, 3 = OPENGL, 4 = Software, 5 = Software Improved-->
<config driver="3" xres="800" yres="600" bits="32" fullscreen="1" />

DONT forget to include the header "<?xml version="1.0"?>" or Irrlicht will NOT read it.

For the writer it is similar just do this:

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IXMLWriter* xmlr = device->getFileSystem()->createXMLWriter("save.data");
xmlr->writeXMLHeader();
xmlr->writeElement(L"stats",true,health,healthvalue,magic,magicvalue,strength,strengthvalue,smart,smartvalue,somethingelse,somethingelsevalue);	
xmlr->drop();
// (healthvalue is value of health, magicvalue is value of magic, etc etc)
// Here is how i set the "magicvalue" for example:
// wchar_t magicvalue[255];
// swprintf(magicvalue, 255, L"%d",[INTEGER GOES HERE]);
// And do that for all values that you set that are ints, use f% instead of d% for floats. 
// Or replace the whole of "%d" with the words if you just want a string.
// Remember to place all of this BEFORE the writer code...:P

Note you need to have 5 elements there I think. AND DONT FORGET "xmlr->writeXMLHeader();" before writing to any XML file! Else irrlicht can't read it!

Cheers.

[Halan]

what are you talking about of course can irrliht read xml without the header

but dont forget to drop the writer at the end otherwise the data wont be flushed on the HD

greets,
halan

[BlindSide]

Oh yeah, its just thats what it says on the tutorial or somewhere else I read. Woops your right I forgot to drop the writer