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Permission from the author is not necessary. You must only follow the license conditions (your modified version must use the same license and the source must be available). See also the GPL FAQ[^].
In your case you should let the original license text on top of the source files and add your own text indicating that it is a derived work and what has been added or changed. Optional add also your own readme file.
If you want your article code to be published also with LGPL, you can include the modified library sources with your source download package.
Otherwise you should provide an additional package with the modified library sources and add some text to the article license section to make clear that there are different licenses.
As already noted, you must publish the modified version using the same license. But you should check if the license is LGPL 2.1 or LGPL 2.1+. The latter may be indicated by the + sign or in textual form ("these or any later version of GPL"). If you are allowed to use a later version I would choose 3.0.
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Thanks, Jochen, for this very thoughtful reply.
When I do publish an article here on CP, I'd like it to have either no license of any type, or the same "license" that most other CP articles have.
I'm still not sure if it's "legal" to publish an article on CP that would be "encumbered" by such things as LPGL.
This kind of issue is one I have not encountered before.
cheers, Bill
«OOP to me means only messaging, local retention and protection and hiding of state-process, and extreme late-binding of all things. » Alan Kay's clarification on what he meant by the term "Object" in "Object-Oriented Programming."
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Having no license is a bad idea. A license gives users and authors predictability of legal decisions. The commonly used license here is the CPL which is quite close to the LGPL.
I don't see any problems with multiple licenses for different code packages. Maybe a CP team member can confirm this.
When writing software for the public, you are always faced with license issues. But with an article it is much simpler: You just have to follow the license and copyright terms of those parts that are not written by you and choose a license for your parts.
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Once again, thanks for taking the time to reply, Jochen,
If my intent is purely educational: to provide code that anyone can use for any purpose anywhere ... and to take no "responsibility" for it, claim no copyright, or "ownership" of it ... imho, no license is not necessarily "bad" ... for me.
However, if/when I publish on CodeProject, then I want CP to be free to do whatever they now do by default in terms of licensing/copyright, etc.
I agree with you that some clarification from CP staff is needed.
thanks, Bill
«OOP to me means only messaging, local retention and protection and hiding of state-process, and extreme late-binding of all things. » Alan Kay's clarification on what he meant by the term "Object" in "Object-Oriented Programming."
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I want to put some nice looking graphs in my articles. I already do this on my blog using a js chart library. I know I could use images, but anyways: Is there a library I can use in CP? Is Javascripting allowed?
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Sadly no Javascripting is allowed 
Thanks,
Sean Ewington
CodeProject
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Sean Ewington wrote: Sadly Thankfully no Javascripting is allowed
FTFY. 
I don't want to have to disable script on Code Project just in case some nefarious character adds malicious script to their article/question/message.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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The first two articles meet a specific set of guidelines, where the authors are not associated with the product, they are merely writing on something they have.
The second article is like a paid review. It goes in that specific subsection and comes with that Editorial label at the top.
Thanks,
Sean Ewington
CodeProject
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I want to call ComputePremium method from my application which take class as parameter unable to do so.
[DesignerCategory("code")]
[WebServiceBinding(Name = "BasicHttpBinding_IPremimumCalculatorService", Namespace = "http://tempuri.org/")]
[GeneratedCode("System.Web.Services", "4.0.30319.17929")]
[DebuggerStepThrough]
public class PremiumCalculatorService : SoapHttpClientProtocol
{
[SoapDocumentMethod("http://www.apollomunichinsurance.com/B2BService/IPremimumCalculatorService/ComputePremium", RequestNamespace = "http://www.apollomunichinsurance.com/B2BService", ResponseNamespace = "http://www.apollomunichinsurance.com/B2BService", Use = SoapBindingUse.Literal, ParameterStyle = SoapParameterStyle.Wrapped)]
public Client[] ComputePremium(PremiumCalculatorRequest premiumCalculatorRequest);
}
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This forum is for questions about writing articles for Code Project.
Try the WCF forum[^] instead.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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I had literally written 5 paragraphs of an article I am working on, accidentally hit back and bam, all gone!
My fault (I'm not used to this keyboard and hit Alt+Left as opposed to Ctrl+Left to jump over a word) but a dialogue if you try to navigate away would be really handy.
Cheers
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Disregard, turned out it had auto-saved and was able to select it from the menu and continue, thanks
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Always write your articles offline, and only upload them when they are (almost) complete. Editing online is always risky, however hard the developers of CodeProject try to care for us.
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Style
overflow:scroll;
not working.
And how I can add borders to table?
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Can you please email me the HTML? Maybe I have a better option.
Thanks,
Sean Ewington
CodeProject
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I see what's happening. The problem is the article editor is very particular. We also like to keep our article within the confines of 640 pixels. The only way to fit that text you wanted was to reduce the size. I've applied our custom table class to your table and changed the font size. Lemme know what you think.
Thanks,
Sean Ewington
CodeProject
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25 MB is a bit too big for us, I'm afraid. The external link will be fine in this case.
Thanks,
Sean Ewington
CodeProject
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I have to develop a dynamic code obfuscation technique with tamper-proofing to protect against the reverse engineering. Is it possible to develop code obfuscation using evolutionary computing.
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It's probably not worth the trouble.
Have you looked at the available obfuscation solutions?
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Please note this forum is for questions about Articles you have written. Use the Quick Answers forum[^] for technical queries.
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There's a difference between obfuscation and tamper-proofing things. There's no way to prevent reverse-engineering, but that should not matter if you want to make things tamper-proof
As for preventing reverse-engineering - as said, it is not worth the trouble. If I need to, I'll reuse it as is, without decompiling.
..and I'm starting to think that most code is like most database-structures; most managers think that it is a valuable company-secrect, where it is usually a non-normalized structure that gets beaten by one of the free structures on database-answers.org.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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