Qpsycle/developer/resources

Qt IDEs

 * QDevelop: http://qdevelop.org/ (Cross-platform)
 * KDevelop: http://www.kdevelop.org/ (Linux)
 * Monkey Studio: http://monkeystudio.sf.net (Cross-platform)
 * Eclipse (cross-platform) (see or  or perhaps  for Qt integration)
 * Visual Studio (Windows) (see and  on how to get it to work with Qt)
 * (vi|emacs) + gdb ;)

Qt help

 * Use the Qt Assistant program -- it contains tutorials and the entire Qt API, fully-searchable.
 * QtCentre Forums: http://qtcentre.org/forum

Widgets

 * http://thorwil.wordpress.com/tag/widgets/
 * http://vokicodder.blogspot.com/
 * http://qwt.sourceforge.net/
 * http://lalists.stanford.edu/lad/2006/02/0029.html

Some open-source audio apps using Qt

 * Hydrogen: http://www.hydrogen-music.org/
 * LMMS: http://lmms.sourceforge.net/
 * Qtractor: http://qtractor.sourceforge.net/qtractor-index.html
 * Rosegarden: http://rosegardenmusic.com
 * MusE: http://www.muse-sequencer.org
 * CLAM: http://clam.iua.upf.edu/
 * DJPlay: http://djplay.sourceforge.net/
 * AlsaModularSynth: http://alsamodular.sourceforge.net/
 * Mixxx: http://mixxx.sourceforge.net
 * Freecycle: http://freecycle.redsteamrecords.com/
 * Sonic Visualiser: http://www.sonicvisualiser.org/

Linux & VSTs

 * JOST: http://www.anticore.org/jucetice/?page_id=4
 * Article about JOST: http://www.linuxjournal.com/node/1000192
 * FST: http://www.joebutton.co.uk/fst/
 * dssi-vst: http://dssi.sourceforge.net/download.html#dssi-vst