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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

ConstantValue
QApplication::NormalColors 
QApplication::CustomColors 

Member Function Documentation

ColorMode QApplication::colorMode ()   [static]

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

void QApplication::flushX ()   [static]

Use flush() instead.

bool QApplication::hasGlobalMouseTracking ()   [static]

Always returns true. ###

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]

Returns the main application widget, or 0 if there is no main widget.

See also setMainWidget().

bool QApplication::reverseLayout ()   [static]

Use layoutDirection() instead.

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

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

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

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Use the two-argument overload instead.

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

###

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

Sets the application's main widget to mainWidget.

In most respects the main widget is like any other widget, except that if it is closed, the application exits. Note that QApplication does not take ownership of the mainWidget, so if you create your main widget on the heap you must delete it yourself.

You need not have a main widget; connecting lastWindowClosed() to quit() is an alternative.

For X11, this function also resizes and moves the main widget according to the -geometry command-line option, so you should set the default geometry (using QWidget::setGeometry()) before calling setMainWidget().

See also mainWidget(), exec(), and quit().

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

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

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

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Use the two-argument overload instead.

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

Use setLayoutDirection() instead.

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);

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

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

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. It behaves essentially like the above function.

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.

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

Returns the version of the Windows operating system that is running:

VersionOS
Qt::WV_95Windows 95
Qt::WV_98Windows 98
Qt::WV_MeWindows Me
Qt::WV_NTWindows NT 4.x
Qt::WV_2000Windows 2000 (NT5)
Qt::WV_XPWindows XP
Qt::WV_2003Windows Server 2003 family
Qt::WV_CEWindows CE
Qt::WV_CENETWindows CE.NET

Warning: This function is only implemented for the Windows version of Qt.


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Qt 4.0.0-b2