use currentItemChanged signal instead of itemSelectionChanged - since the latter is always one item behind if you hold down the mousebutton and move the cursor through the list
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# Automatically generated by qmake (2.01a) ?? 23. ??? 20:44:46 2007
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TEMPLATE = app
TARGET =
DEPENDPATH += .
INCLUDEPATH += .
# Input
HEADERS += mainform.h pixlabel.h
SOURCES += main.cpp mainform.cpp pixlabel.cpp