New Classes and Functions in Qt 5.5

This page contains a comprehensive list of all new classes and functions introduced in Qt 5.5. Links to new APIs in previous Qt 5 releases are found at the bottom of this page.

New Classes

New Member Functions

Class QMessageLogger:

info() const
info(QMessageLogger::CategoryFunction catFunc) const
info(const QLoggingCategory &cat) const
info(QMessageLogger::CategoryFunction catFunc, const char *msg, ...) const
info(const QLoggingCategory &cat, const char *msg, ...) const
info(const char *msg, ...) const

Class QPlatformFontDatabase:


New Global Functions

operator!=(const int &a, const int &b)
qEnvironmentVariableIntValue(const char *varName, bool *ok)

New Macros

Q_ENUM( ...)
Q_FLAG( ...)
qCInfo(category, const char *message, ...)
qCInfo(category)
qInfo(const char *message, ...)

New Enum Types

enum TabFocusBehavior { NoTabFocus, TabFocusTextControls, TabFocusListControls, TabFocusAllControls }

New QML Types

New QML Properties

New QML Signals

New QML Methods

Additions to Other Qt 5 Releases