qt_demoe/styledemo/main.cpp

#include "frmmain.h"
#include <QApplication>
#include <QTextCodec>
#include <QDesktopWidget>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    a.setFont(QFont("Microsoft Yahei", 9));

#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
#if _MSC_VER
    QTextCodec *codec = QTextCodec::codecForName("gbk");
#else
    QTextCodec *codec = QTextCodec::codecForName("utf-8");
#endif
    QTextCodec::setCodecForLocale(codec);
    QTextCodec::setCodecForCStrings(codec);
    QTextCodec::setCodecForTr(codec);
#else
    QTextCodec *codec = QTextCodec::codecForName("utf-8");
    QTextCodec::setCodecForLocale(codec);
#endif

    frmMain w;
    w.setWindowTitle("styledemo  Author: feiyangqingyun@163.com  QQ: 517216493");
    w.show();

    //居中显示窗体
    QDesktopWidget deskWidget;
    int deskWidth = deskWidget.availableGeometry().width();
    int deskHeight = deskWidget.availableGeometry().height();
    QPoint movePoint(deskWidth / 2 - w.width() / 2, deskHeight / 2 - w.height() / 2);
    w.move(movePoint);

    return a.exec();
}