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Sourcecode: qt4-x11 version File versions  Download package

src_corelib_concurrent_qtconcurrentrun.cpp

//! [0]
extern void aFunction();
QFuture<void> future = QtConcurrent::run(aFunction);
//! [0]


//! [1]
extern void aFunctionWithArguments(int arg1, double arg2, const QString &string);

int integer = ...;
double floatingPoint = ...;
QString string = ...;

QFuture<void> future = QtConcurrent::run(aFunctionWithArguments, integer, floatingPoint, string);
//! [1]


//! [2]
extern QString functionReturningAString();
QFuture<QString> future = QtConcurrent::run(functionReturningAString);
...
QString result = future.result();
//! [2]


//! [3]
extern QString someFunction(const QByteArray &input);

QByteArray bytearray = ...;

QFuture<QString> future = QtConcurrent::run(someFunction, bytearray);
...
QString result = future.result();
//! [3]


//! [4]
// call 'QStringList QString::split(const QString &sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const' in a separate thread
QString string = ...;
QFuture<QStringList> future = QtConcurrent::run(string, &QString::split, QString(", "), QString::KeepEmptyParts, Qt::CaseSensitive);
...
QStringList result = future.result();
//! [4]


//! [5]
// call 'void QImage::invertPixels(InvertMode mode)' in a separate thread
QImage image = ...;
QFuture<void> future = QtConcurrent::run(image, &QImage::invertPixels, QImage::InvertRgba);
...
future.waitForFinished();
// At this point, the pixels in 'image' have been inverted
//! [5]


//! [6]
void someFunction(int arg1, double arg2);
QFuture<void> future = QtConcurrent::run(boost::bind(someFunction, 1, 2.0));
...
//! [6]

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