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33 lines
1.1 KiB
33 lines
1.1 KiB
.TH "qt20fix" "1" "3.0.3" "Troll Tech AS, Norway." ""
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.SH "NAME"
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.LP
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qt20fix \- Helps clean namespace when porting an app from Qt1 to Qt2
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.SH "SYNTAX"
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.LP
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qt20fix myapp.cpp
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.SH "DESCRIPTION"
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.LP
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Qt 2.x is namespace\-clean, unlike 1.x. Qt now uses very
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few global identifiers. Identifiers like red, blue,
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LeftButton, AlignRight, Key_Up, Key_Down, NoBrush etc.
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are now part of a special class Qt (defined in
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qnamespace.h), which is inherited by most Qt classes.
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Member functions of classes that inherit from QWidget,
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etc. are totally unaffected, but code that is not in
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functions of classes inherited from Qt, you must qualify
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these identifiers like this: Qt::red, Qt::LeftButton,
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Qt::AlignRight, etc.
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The qt/bin/qt20fix script helps to fix the code that
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needs adaption, though most code does not need changing.
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Compiling with \-DQT1COMPATIBILITY will help you get going
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with Qt 2.x \- it allows all the old "dirty namespace"
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identifiers from Qt 1.x to continue working. Without it,
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you'll get compile errors that can easily be fixed by
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searching this page for the clean identifiers.
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.SH "AUTHORS"
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.LP
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TrollTech <http://www.trolltech.com/>
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