- All (478)
- jom (0)
- Qt Linguist (7)
- Qt Eclipse Integration (9)
- Qt Designer (7)
- Qt Creator (4)
- Qt build system: qmake (31)
- Qt build system: configure (3)
- Qt Assistant (5)
- Printing (4)
- Porting from Qt 3 to Qt 4 (1)
- Plugins (7)
- Qt Visual Studio AddIn (2)
- Qt/MFC Migration (2)
- QtScript (3)
- MDI (2)
- XML (1)
- Widgets (22)
- WebKit (5)
- Tools and Containers (2)
- Threads (2)
- Text Handling (10)
- SQL (6)
- QtTest (1)
- QtService (1)
- Platform: Windows (49)
- Platform: Unix (16)
- Platform: Mac OS X (18)
- Image Formats (2)
- I/O (2)
- Graphicsview (8)
- Font handling (9)
- Event System (18)
- Drag and Drop (4)
- Dialogs (6)
- Desktop integration (3)
- ActiveQt (3)
- Itemviews (60)
- Layout (4)
- Qt Quick (10)
- Qt SDK (1)
- Licensing (2)
- Platform: Embedded Linux (38)
- Painting (32)
- OpenGL (4)
- Object Model (6)
- Network (5)
- Multimedia (3)
- Miscellanous (23)
- Main Window (19)
- Look and Feel (23)
- Development (0)
- Getting Involved (0)
- Routines (0)
Why is Qt released under LGPL?
As of Qt version 4.5, we license Qt under the LGPL version 2.1. Why? We have
always chosen licenses that best support our goals. Following the Nokia
acquisition, our goals have changed from being focused on revenue generation
to supporting Nokias overall software strategy through the vision of Qt
Everywhere.
The LGPL license will make it easier for developers to adopt Qt. By spreading
the use of Qt as widely as possible and establishing a robust ecosystem, Qt
will ensure that Nokia devices and services are of higher quality and reach
the market in a timely fashion.
3 comments
October 25, 2010
Lab Rat
I am quite happy to have Qt under the LGPL.
December 4, 2010
Lab Rat
There’s further information on the licencing available at: http://qt.nokia.com/products/licensing
July 9, 2011
Lab Rat
Using Qt makes sense only with signal-slot mechanism which practically can only be used when inheriting from Qt classes (http://doc.qt.nokia.com/latest/designer-using-a-ui-file.html#the-single-inheritance-approach). But inheriting and not sharing the code violates the LGPL license so practically Qt is not available under LGPL license. Please correct me if I am wrong.