QT OPENGL实现图像的三维显示,并提供跨平台图图像显示接口-QT OPENGL Realizes three-dimensional display of images and provides cross-platform image display interface

Qt 使用opengle贴图方法显示位图，效率比QPainter快的得，可用到需要快速绘图刷新程序中。(Qt uses the opengle mapping method to display the bitmap, which is faster than QPainter, so it can be used in fast drawing refresh programs.)