DELPHI调用斑马证卡机P330i的SDK例子； 其中包括：打印文本、图像、条码以及对磁卡读写功能；比较实用！-DELPHI call zebra card machine P330i SDK examples Including: print text, images, bar codes, magnetic read and write capabilities more practical!

数字图像处理：（1）输入图像，采用半色调技术并将图像打印和显示。（2）按要求降低图像的灰度级。（3）采用像素复制的方法对图像进行缩放。（4）采用双线性插值法的方法对图像进行缩放。-Image Printing Program Based on Halftoning The following figure shows ten shades of gray approximated by dot patterns. Each gray level is represented by a 3