添加头文件:
#include <QPainter>#include <QBitmap>
在构造函数里面添加如下代码即可实现:
this->setWindowFlags(Qt::FramelessWindowHint);//新建无边框窗口,可以把边框完全去掉QBitmap bmp(this->size());bmp.fill();QPainter p(&bmp);p.setPen(Qt::NoPen);p.setBrush(Qt::black);p.drawRoundedRect(bmp.rect(),10,10);//像素为10的圆角setMask(bmp);
笔记:
//获取用户分辨率率QDesktopWidget* desktopWidget = QApplication::desktop();//得到客户区矩形QRect clientRect = desktopWidget->availableGeometry();//得到应用程序矩形QRect applicationRect = desktopWidget->screenGeometry();qDebug()<<clientRect<<applicationRect;