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Qt 3 Support Members for QApplication

The following class members are part of the Qt 3 support layer. They are provided to help you port old code to Qt 4. We advise against using them in new code.

Public Types

Static Public Members


Member Type Documentation

typedef QApplication::ColorMode

Use ColorSpec instead.


Member Function Documentation

ColorMode QApplication::colorMode ()   [static]

Use colorSpec() instead, and use ColorSpec as the enum type.

See also setColorMode().

void QApplication::flushX ()   [static]

Use flush() instead.

bool QApplication::hasGlobalMouseTracking ()   [static]

This feature does not exist anymore. This function always returns true in Qt 4.

Qt::Alignment QApplication::horizontalAlignment ( Qt::Alignment align )   [static]

Strips out vertical alignment flags and transforms an alignment align of Qt::AlignLeft into Qt::AlignLeft or Qt::AlignRight according to the language used.

Qt::MacintoshVersion QApplication::macVersion ()   [static]

Use QSysInfo::MacintoshVersion instead.

QWidget * QApplication::mainWidget ()   [static]

See also setMainWidget().

bool QApplication::reverseLayout ()   [static]

Use layoutDirection() instead.

See also setReverseLayout().

void QApplication::setColorMode ( ColorMode mode )   [static]

Use setColorSpec() instead, and pass a ColorSpec value instead.

See also colorMode().

void QApplication::setFont ( const QFont & font, bool b, const char * className = 0 )   [static]

This is an overloaded member function, provided for convenience.

Use the two-argument overload instead.

void QApplication::setGlobalMouseTracking ( bool dummy )   [static]

This function does nothing in Qt 4. The dummy parameter is ignored.

See also hasGlobalMouseTracking().

void QApplication::setMainWidget ( QWidget * )   [static]

See also mainWidget().

void QApplication::setOverrideCursor ( const QCursor & cursor, bool replace )   [static]

This is an overloaded member function, provided for convenience.

Use changeOverrideCursor(cursor) (if replace is true) or setOverrideCursor(cursor) (if replace is false).

void QApplication::setPalette ( const QPalette & pal, bool b, const char * className = 0 )   [static]

This is an overloaded member function, provided for convenience.

Use the two-argument overload instead.

void QApplication::setReverseLayout ( bool reverse )   [static]

Use setLayoutDirection() instead.

See also reverseLayout().

void QApplication::setWinStyleHighlightColor ( const QColor & c )   [static]

Use the palette instead.

For example, if you have code like

 app.setWinStyleHighlightColor(color);

you can rewrite it as

 QPalette palette(qApp->palette());
 palette.setColor(QPalette::Highlight, color);
 qApp->setPalette(palette);

See also winStyleHighlightColor().

QWidget * QApplication::widgetAt ( int x, int y, bool child )   [static]

This is an overloaded member function, provided for convenience.

Use the two-argument widgetAt() overload to get the child widget. To get the top-level widget do this:

         QWidget *widget = qApp->widgetAt(x, y);
         if (widget)
             widget = widget->window();

QWidget * QApplication::widgetAt ( const QPoint & point, bool child )   [static]

This is an overloaded member function, provided for convenience.

Use the single-argument widgetAt() overload to get the child widget. To get the top-level widget do this:

         QWidget *widget = qApp->widgetAt(point);
         if (widget)
             widget = widget->window();

const QColor & QApplication::winStyleHighlightColor ()   [static]

Use qApp->palette().color(QPalette::Active, QPalette::Highlight) instead.

See also setWinStyleHighlightColor().

Qt::WindowsVersion QApplication::winVersion ()   [static]

Use QSysInfo::WindowsVersion instead.


Member Variable Documentation

const int QApplication::CustomColors

Use CustomColor instead.

const int QApplication::NormalColors

Use NormalColor instead.


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Qt 4.4.0