[완료] qt 에서 gif애니메이션을 QMovie로 구현하는 방법에 관해 궁금한게 있습니다.

#include <QtGui/QApplication>
#include "widget.h"
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
 
    return a.exec();
}

#ifndef WIDGET_H
#define WIDGET_H
 
#include <QWidget>
 
class QLabel;
 
namespace Ui {
    class Widget;
}
 
class Widget : public QWidget
{
    Q_OBJECT
 
public:
    explicit Widget(QWidget *parent = 0);
    ~Widget();
 
	QLabel *Movie;
 
private:
    Ui::Widget *ui;
 
private slots:
	void on_pushButton_reload_clicked();
};
 
#endif // WIDGET_H

#include "widget.h"
#include "ui_widget.h"
 
 
#include <QMovie>
#include <QBuffer>
#include <QFile>
#include <QLabel>
 
Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
 
	Movie = new QLabel(this);
}
 
Widget::~Widget()
{
    delete ui;
}
 
 
void Widget::on_pushButton_reload_clicked()
{
 
	// 오류
	QFile f(":/image01.gif");
	QByteArray b;
	if (f.open(QFile::ReadOnly)) {
		b = f.readAll();
		f.close();
 
		QBuffer buffer(&b);
 
		QMovie *mov = new QMovie(&buffer);
		Movie->setMovie(mov);
		Movie->setGeometry(20, 20, 392, 225);
		mov->start();
	}
 
 
//	// 정상작동
//	QFile f(":/image01.gif");
//	QByteArray *b;
//	if (f.open(QFile::ReadOnly)) {
//		b = new QByteArray(f.readAll());
//		f.close();
 
//		QBuffer *buffer = new QBuffer(b);
 
//		QMovie *mov = new QMovie(buffer);
//		Movie->setMovie(mov);
//		Movie->setGeometry(20, 20, 392, 225);
//		mov->start();
//	}
 
}