Qt编程技巧 QFileDialog自动添文件后缀的方法

Posted on 2009-10-26 In 技术笔记

QString filename;
filename = QFileDialog::getSaveFileName(this, tr("保存图片"),QDir::currentPath(), tr("Images (*.png *.bmp *.jpg)"));
if (filename.isNull())
   return ;
if (QFileInfo(filename).suffix().isEmpty())  //若后缀为空自动添加png后缀
    filename.append(".png");