OpenGL，Visual C++ 生成贝塞尔曲线 KEYfunction: c - 清空屏幕；e - 擦除曲线；b - 画贝塞尔曲线-OpenGL, Visual C Bessel curve KEYfunction Generation : c-blank screen; e-erasure curve; b-painting Bessel curve

利用BitBlt函数和ROP代码实现在Windows窗口中擦除位图背景-using BitBlt function and the realization of ROP code in Windows window background bitmap erasure

将外部存储的图片显示到屏幕，可调节显示区域大小，可擦除。-Disply external image on screen,support erasure the image and adjust size of image.