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在实验中使用graphicsView控件显示图片
使用程序如下:
QGraphicsScene *scene;
scene->addPixmap(QPixmap("logo.png"));
ui->graphicsView = new QGraphicsView(scene,this);
ui->graphicsView->setGeometry(210,10,28,98);
ui->graphicsView->show();
make时提示如下warning:
ledtest.cpp: In constructor 'ledtest::ledtest(QWidget*)':
ledtest.cpp:28: warning: 'scene' may be used uninitialized in this function
ledtest.cpp: In constructor 'ledtest::ledtest(QWidget*)':
ledtest.cpp:28: warning: 'scene' may be used uninitialized in this function
但可以编译完成,复制到开发板运行提示
Segmentation fault |
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