title: Capturing high-quality(300dpi) screenshots of QT-based app in Linux
body: <p>I need to make a screenshot of my form created in QT designer. There are numerous approaches to do screenshots(gimp, import, etc..) but alt of them deal with same dpi as on my monitor(about 100dpi). This is quite enough to publish on web site, but 300dpi images are required for paper publications. Are there any ways to create 300dpi screenshots?</p>