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**
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** This file is part of the documentation of the Qt Toolkit.
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//! [0]
QString s = Q3FileDialog::getOpenFileName(
                "/home",
                "Images (*.png *.xpm *.jpg)",
                this,
                "open file dialog",
                "Choose a file");
//! [0]


//! [1]
"Images (*.png *.xpm *.jpg);;Text files (*.txt);;XML files (*.xml)"
//! [1]


//! [2]
Q3FileDialog* fd = new Q3FileDialog(this, "file dialog", true);
fd->setMode(Q3FileDialog::AnyFile);
//! [2]


//! [3]
fd->setFilter("Images (*.png *.xpm *.jpg)");
//! [3]


//! [4]
fd->setViewMode(Q3FileDialog::Detail);
//! [4]


//! [5]
QString fileName;
if (fd->exec() == QDialog::Accepted)
    fileName = fd->selectedFile();
//! [5]


//! [6]
class Preview : public QLabel, public Q3FilePreview
{
public:
    Preview(QWidget *parent=0) : QLabel(parent) {}

    void previewUrl(const Q3Url &u)
    {
        QString path = u.path();
        QPixmap pix(path);
        if (pix.isNull())
            setText("This is not a pixmap");
        else
            setPixmap(pix);
    }
};
//! [6]


//! [7]
Preview* p = new Preview;

Q3FileDialog* fd = new Q3FileDialog(this);
fd->setContentsPreviewEnabled(true);
fd->setContentsPreview(p, p);
fd->setPreviewMode(Q3FileDialog::Contents);
fd->show();
//! [7]


//! [8]
QStringList list = myFileDialog.selectedFiles();
QStringList::Iterator it = list.begin();
while(it != list.end()) {
    myProcessing(*it);
    ++it;
}
//! [8]


//! [9]
fd->setFilter("All C++ files (*.cpp *.cc *.C *.cxx *.c++)");
fd->setFilter("*.cpp *.cc *.C *.cxx *.c++");
fd->setFilter("All C++ files (*.cpp;*.cc;*.C;*.cxx;*.c++)");
fd->setFilter("*.cpp;*.cc;*.C;*.cxx;*.c++");
//! [9]


//! [10]
QString s = Q3FileDialog::getOpenFileName(
                "/home",
                "Images (*.png *.xpm *.jpg)",
                this,
                "open file dialog",
                "Choose a file to open");
//! [10]


//! [11]
QString s = Q3FileDialog::getSaveFileName(
                "/home",
                "Images (*.png *.xpm *.jpg)",
                this,
                "save file dialog",
                "Choose a filename to save under");
//! [11]


//! [12]
QString s = Q3FileDialog::getExistingDirectory(
                "/home",
                this,
                "get existing directory",
                "Choose a directory",
                true);
//! [12]


//! [13]
MyFileDialog::MyFileDialog(QWidget* parent, const char* name) :
    Q3FileDialog(parent, name)
{
    QLabel* label = new QLabel("Added widgets", this);
    QLineEdit* lineedit = new QLineEdit(this);
    QPushButton* pushbutton = new QPushButton(this);

    addWidgets(label, lineedit, pushbutton);
}
//! [13]


//! [14]
QString types("Image files (*.png *.xpm *.jpg);;"
              "Text files (*.txt);;"
              "Any files (*)");
Q3FileDialog fd = new Q3FileDialog(this);
fd->setFilters(types);
fd->show();
//! [14]


//! [15]
Q3FileDialog* fd = new Q3FileDialog(this);
fd->addFilter("Images (*.png *.jpg *.xpm)");
fd->show();
//! [15]


//! [16]
QStringList files = Q3FileDialog::getOpenFileNames(
                        "Images (*.png *.xpm *.jpg)",
                        "/home",
                        this,
                        "open files dialog",
                        "Select one or more files to open");
//! [16]


//! [17]
QStringList list = files;
QStringList::Iterator it = list.begin();
while(it != list.end()) {
    myProcessing(*it);
    ++it;
}
//! [17]


//! [18]
class Preview : public QLabel, public Q3FilePreview
{
public:
    Preview(QWidget *parent=0) : QLabel(parent) {}

    void previewUrl(const Q3Url &u)
    {
        QString path = u.path();
        QPixmap pix(path);
        if (pix.isNull())
            setText("This is not a pixmap");
        else
            setText("This is a pixmap");
    }
};

//...

int main(int argc, char** argv)
{
    Preview* p = new Preview;

    Q3FileDialog* fd = new Q3FileDialog(this);
    fd->setInfoPreviewEnabled(true);
    fd->setInfoPreview(p, p);
    fd->setPreviewMode(Q3FileDialog::Info);
    fd->show();
}

//! [18]


//! [19]
class Preview : public QLabel, public Q3FilePreview
{
public:
    Preview(QWidget *parent=0) : QLabel(parent) {}

    void previewUrl(const Q3Url &u)
    {
        QString path = u.path();
        QPixmap pix(path);
        if (pix.isNull())
            setText("This is not a pixmap");
        else
            setPixmap(pix);
    }
};

//...

int main(int argc, char** argv)
{
    Preview* p = new Preview;

    Q3FileDialog* fd = new Q3FileDialog(this);
    fd->setContentsPreviewEnabled(true);
    fd->setContentsPreview(p, p);
    fd->setPreviewMode(Q3FileDialog::Contents);
    fd->show();
}
//! [19]