Qt获取字体

//.h

#ifndef DIALOG_H
#define DIALOG_H

#include 
#include 
#include 
#include 
#include 

class Dialog : public QDialog
{
    Q_OBJECT

public:
    Dialog(QWidget *parent = 0);
    ~Dialog();

    QPushButton *pushBtn;
    QLineEdit *lineEdit;

private slots:
    void showFont();
};

#endif // DIALOG_H

//.cpp

#include "dialog.h"



Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
{

    pushBtn = new QPushButton;
    pushBtn->setText(tr("标准字体对话框"));
    lineEdit = new QLineEdit;
    lineEdit->setText(tr("Welcome"));

    QGridLayout *main = new QGridLayout(this);
    main->addWidget(pushBtn,1,0);
    main->addWidget(lineEdit,1,1);

    connect(pushBtn,SIGNAL(clicked()),this,SLOT(showFont()));
}

Dialog::~Dialog()
{

}

void Dialog::showFont()
{
    bool ok;
    QFont f = QFontDialog::getFont(&ok);
    if(ok)
    {
        lineEdit->setFont(f);
    }
}