Book Freebie: Creating XPCOM Components

Hi,

  Doug Turner and Ian Oeschger have published a book
titled "Creating XPCOM Components" under the Open
Publication License (OPL).

  The book shows you how to turn your C++ code into a
component that you can plug into Gecko (the Mozilla
"kernel") and discusses everything you never wanted to
know about XPCOM.  

  The tutorial for turning a simple C++ class into a
XPCOM component stretches on for 200+ pages and will
leave future generations puzzled how anyone could have
ever mastered these obscure details. Here's a sample:

if (aIID.Equals(NS_GET_IID(nsISupports))) { 
  *aInstancePtr = (void*)(nsISupports*)this; 
  NS_ADDREF_THIS(); 
  return NS_OK; 
} 

  Hidden in the gory XPCOM details is a mini-XUL
tutorial in chapter 8 titled: "Building the WebLock
UI".

  Full story @
http://www.mozilla.org/projects/xpcom/book/cxc and
http://www.mozilla.org/projects/xpcom/book/cxc/html/weblock_ui.html

   - Gerald


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