What kind of license I can select about Qt Creator ?

[kichi]

I know that, I can choose a license of Qt Library, from commercial license or LGPL or GPL.
But I don't know it about Qt Creator.

What kind of license is there about Qt Creator ?
Only LGPL ? or Commercial License/LGPL/GPL ? or other ?

I am sorry in poor English.

[squidge]

I don't think QtCreator can be placed under the LGPL due to what it is and how it works, so the only applicable licenses would be Commercial and GPL.

... But I'm not a lawyer.

[Lykurg]

The Creator is LGPL. At least the headers of the most files say that (I haven't checked all!) and in the root directory there is only the LGPL license. Commercial usage is of course also possible.

[wysota]

I think it's also available under a commercial licence. But you probably need to download a separate version for that. Anyway in case of this program I fail to see a reason why someone would want to use it with licence other than LGPL.

[kichi]

I had a opportunity to talk about Qt Creator with the people.
And I intend to make a plugin for Qt Creator someday.
Then, I noticed that I had not known about the licences of Qt Creator.
so, I came to want to know about it.

fatjuicymole, Lykurg, wysota
Thank you very much.

[wysota]

The licence of Qt Creator is more or less irrelevant when it comes to developing plugins. You can link a commercial plugin against LGPL Creator without any violation.

[squidge]

I thought LGPL only applied to libraries, and with Creator, there is no library, so it wasn't applicable.

What is the difference between GPL and LGPL on a program such as Creator?

[wysota]

I thought LGPL only applied to libraries,

That's not true. LGPL stands for "Lesser GPL", not "Library GPL". You can treat it as somewhat "relaxed" GPL.

Creator consists of mostly libraries, by the way. The core of the application is not much more than the main() function.

[kichi]

The licence of Qt Creator is more or less irrelevant when it comes to developing plugins. You can link a commercial plugin against LGPL Creator without any violation.

I had been intended to make a plugin of Qt Creator under the LGPL.
And I have decided to select LGPL.
Thank you for the information about the licence of Qt Creator.