What is the difference bitween Bitmap and Pixmap? A pixmap stores and displays a graphical image as a rectangular array of pixel color values while a pixmap that uses only a single bit to denote the color of each pixel is often referred to as a bitmap Bitmap is also sometimes used to refer to any pixmap Reference Look at here to read more about PixMap File extensions bitmap is BMP
What is the difference between QImage and QPixmap? QPixmap is an "image object" whose pixel representation are of no consequence in your code, Thus QPixmap is designed and optimized for rendering images on display screen, it is stored on the XServer when using X11, thus drawing QPixmap on XWindow is much faster than drawing QImages, as the data is already on the server, and ready to use
xlib - What is the difference between XYPixmap, ZPixmap, XImage . . . From the X11 protocol specification: The data for a pixmap is said to be in XY format if it is organized as a set of bitmaps representing individual bit planes, with the planes appearing from most-significant to least-significant in bit order
qt - How to use QPainter on QPixmap - Stack Overflow When you add a pixmap to a scene using addPixmap, only the current pixmap is used Further changes will not affect the scene So you should call addPixmap after you make changes Also you need to destroy QPainter before you use the pixmap to ensure that all changes will be written to the pixmap and to avoid memory leak
qt - How to change size of QPixmap? - Stack Overflow I am write a paint program pix = QPixmap(600,500); set size to 600X500 How to change size after this? Someting like: pix setSize(800,600); Change size to 800
qt - QPixmap and SVG - Stack Overflow How would you suggest to handle svg with QPixmap? The construct QPixmap(": myfile svg"); then call of scaled() does not work The QPixmap gets pixelised Thx
Programatically setting the pixmap of a QLabel in Qt The Widget we should use to show pictures is a QLabel we can do it directly from QtCreator, by setting its pixmap property we should first create a resource file and then add the image to that resource file To create a Qt Resource File, we go to the menus: File > Qt > Qt Resource File we can set the image of the QLabel using Qt Creator