bool ok;
QFont font = QFontDialog::getFont(
&ok,
QFont( "Arial", 18 ),
this,
tr("Pick a font") );
if( ok )
{

QColor color = QColorDialog::getColor(
Qt::yellow,
this );
if( color.isValid() )
{

bool ok;
int value = QInputDialog::getInteger(
this,
tr("Integer"),
tr("Enter an angle:"),
90,
0,
360,
1,
&ok );
if( ok )
{

bool ok;
QStringList items;
items << tr("Foo") << tr("Bar") << tr("Baz");
QString item = QInputDialog::getItem(
this,
tr("Item"),
tr("Pick an item:"),
items,
0,
false,
&ok );
if( ok && !item.isEmpty() )
{

bool ok;
QString text = QInputDialog::getText(
this,
tr("String"),
tr("Enter a city name:"),
QLineEdit::Normal,
tr("Alingsas"),
&ok );
if( ok && !text.isEmpty() )
{

• QMessageBox::Ok: OK
• QMessageBox::Open: Open
• QMessageBox::Save: Save
• QMessageBox::Cancel: Cancel
• QMessageBox::Close: Close
• QMessageBox::Discard: Discard or don’t save, depending on the platform
• QMessageBox::Apply: Apply
• QMessageBox::Reset: Reset
• QMessageBox::RestoreDefaults: Restore defaults
• QMessageBox::Help : Help
• QMessageBox::SaveAll: Save all
• QMessageBox::Yes: Yes
• QMessageBox::YesToAll: Yes to all
• QMessageBox::No: No
• QMessageBox::NoToAll: No to all
• QMessageBox::Abort: Abort
• QMessageBox::Retry: Retry
• QMessageBox::Ignore: Ignore

switch( QMessageBox::question(
this,
tr("Application Name"),
tr("An information message."),
QMessageBox::Yes |
QMessageBox::No |
QMessageBox::Cancel,
QMessageBox::Cancel ) )
{
case QMessageBox::Yes:
...
break;
case QMessageBox::No:
...
break;
case QMessageBox::Cancel:
...
break;
default:
...
break;
}

QMessageBox::information(this,
tr("Application Name"), tr("An information message.") );

QMessageBox::warning(this, tr("Application Name"),

tr("A warning message.") );

QMessageBox::critical(this,tr("Application Name"),
tr("A critical message.") );

QString filename = QFileDialog::getSaveFileName(
this,
tr("Save Document"),
QDir::currentPath(),
tr("Documents (*.doc)") );

QString filename = QFileDialog::getSaveFileName(
this,
tr("Save Document"),
QDir::currentPath(),
tr("Documents (*.doc)") );

QStringList filenames = QFileDialog::getOpenFileNames(
this,
tr("Open Document"),
QDir::currentPath(),
tr("Documents (*.doc);;All files (*.*)") );

QString filename = QFileDialog::getOpenFileName(
this,
tr("Open Document"),
QDir::currentPath(),
tr("Document files (*.doc *.rtf);;All files (*.*)") );
if( !filename.isNull() )
{

void ListWidgetDialog::moveLeft()
{
if( rightList->selectedItems().count() != 1 )
return;
QListWidgetItem *item = rightList->takeItem( rightList->currentRow() );
leftList->addItem( item );
}

void ListDialog::deleteItem()
{
delete ui.list->currentItem();
}

QList<int> list;
list << 23 << 27 << 52 << 52;
QListIterator<int> javaIter( list
while( javaIter.hasNext() )
qDebug() << javaIter.next();

QStyle* pstyle = QStyleFactory::create("CDE");
QApplication::setStyle(pstyle);

Доступные стили:

"Windows"
"Motif"
"CDE"
"Cleanlooks"
"Plastique"