本源码是用VC++6.0实现的，显示了BMP位图，并实现了快速的8*8的块的DCT和IDCT变换-the source of VC 6.0, showing a bitmap BMP, and achieve a rapid 8 * 8 block of DCT and IDCT transform

自绘立体、圆形方形、多边形按钮。非位图 采用变换色彩产生立体效果-draw a 3d button,round,rectangular,othershape

对位图图像利用JPEG标准进行正交变换、量化、扫描从而达到压缩，同时解压显示其压缩图像。-Bitmap image using JPEG standard orthogonal transformation, quantization, scanning to achieve the compression, and decompression display the compressed image.