Home · All Classes · Main Classes · Grouped Classes · Modules · Functions

Qt 3 Support Members for QPixmap

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.

• QPixmap class reference

Public Types

• enum ColorMode { Auto, Color, Mono }

Public Functions

• QPixmap ( const QString & fileName, const char * format, ColorMode mode )
• QPixmap ( const QImage & image )
• bool convertFromImage ( const QImage & image, ColorMode mode )
• bool convertFromImage ( const QImage & image, Qt::ImageConversionFlags flags = Qt::AutoColor )
• QImage convertToImage () const
• bool load ( const QString & fileName, const char * format, ColorMode mode )
• bool loadFromData ( const uchar * buf, uint len, const char * format, ColorMode mode )
• void resize ( int w, int h )
• void resize ( const QSize & size )
• bool selfMask () const
• QPixmap xForm ( const QMatrix & matrix ) const
• operator QImage () const
• QPixmap & operator= ( const QImage & image )

• 8 public functions inherited from QPaintDevice

Member Type Documentation

enum QPixmap::ColorMode

This enum type defines the color modes that exist for converting QImage objects to QPixmap.

Member Function Documentation

QPixmap::QPixmap ( const QString & fileName, const char * format, ColorMode mode )

Use the constructor that takes a Qt::ImageConversionFlag instead.

See also ColorMode and Qt::ImageConversionFlag.

QPixmap::QPixmap ( const QImage & image )

Constructs a pixmap from the QImage image.

See also fromImage().

bool QPixmap::convertFromImage ( const QImage & image, ColorMode mode )

Use the static function QPixmap::fromImage() instead.

bool QPixmap::convertFromImage ( const QImage & image, Qt::ImageConversionFlags flags = Qt::AutoColor )

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

Use the static function QPixmap::fromImage() instead.

QImage QPixmap::convertToImage () const

Use toImage() instead.

bool QPixmap::load ( const QString & fileName, const char * format, ColorMode mode )

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

Use the load() function that takes a Qt::ImageConversionFlag instead.

See also ColorMode and Qt::ImageConversionFlag.

bool QPixmap::loadFromData ( const uchar * buf, uint len, const char * format, ColorMode mode )

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

Use the loadFromData() function that takes a Qt::ImageConversionFlag instead.

See also ColorMode and Qt::ImageConversionFlag.

void QPixmap::resize ( int w, int h )

Use the QPixmap constructor that takes two ints and pass w and h.

For example, if you have code like

    pixmap.resize(10, 20);

you can rewrite it as

    pixmap = QPixmap(10, 20);

void QPixmap::resize ( const QSize & size )

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

Use the QPixmap constructor that takes a QSize and pass it size.

For example, if you have code like

    pixmap.resize(size);

you can rewrite it as

    pixmap = QPixmap(size);

bool QPixmap::selfMask () const

QPixmap QPixmap::xForm ( const QMatrix & matrix ) const

Use transform() instead.

QPixmap::operator QImage () const

Returns the pixmap as a QImage.

This automatic conversion is disabled when QT3_SUPPORT is not defined. Use toImage() instead.

QPixmap & QPixmap::operator= ( const QImage & image )

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

Converts the image image to a pixmap that is assigned to this pixmap. Returns a reference to the pixmap.

See also fromImage().