- o -

• objectName : QObject
• offset : QGraphicsDropShadowEffect , QPanGesture
• opacity : QGraphicsObject , QGraphicsOpacityEffect
• opacityMask : QGraphicsOpacityEffect
• opaqueResize : QSplitter
• openExternalLinks : QLabel , QTextBrowser
• openLinks : QTextBrowser
• optimizationFlags : QGraphicsView
• options : QColorDialog , QFileDialog , QFontDialog , QPageSetupDialog , QPrintDialog , QWizard
• organizationDomain : QCoreApplication
• organizationName : QCoreApplication
• orientation : SeekSlider , VolumeSlider , QAbstractSlider , QDataWidgetMapper , QDialogButtonBox , QProgressBar , QSplitter
• origin : QGraphicsRotation , QGraphicsScale
• outputDevice : AudioOutput , QSvgGenerator
• overwriteMode : QPlainTextEdit , QTextEdit