纯PB程序，对打印机的控制方案
取打印机列表（已有）
取纸张列表（已有）
设置默认打印机（已有）
设置默认纸张（已有）
自定义纸张（已有）
取打印机自定义纸张的最大值（已有，但有问题）
取、设置页边距
打印机走纸
取送纸器列表（已有）
打印机是否连机
打印机是否缺纸（还有其他状态）
要自行判断98/2000，分别处理
Pure Pb program, control scheme for printer
Get printer list (existing)
Paper pick up list (existing)
Set default printer (existing)
Set default paper (existing)
Custom paper (existing)
Maximum value of printer custom paper (existing, but problematic)
Take and set margins
Printer paper
List of paper feeder (existing)
Whether the printer is connected
Whether the printer is out of paper (other states)
We should judge 98/2000 by ourselves and deal with them separately (2021-04-01, PowerBuilder, 158KB, 下载1次)
使用C#监听刷卡器，调用rest服务获取打印任务，解析并调用打印机打印
Use C# to listen swipe card reader, calls the rest service get the print job, resolve and call the printer (2016-01-06, PowerBuilder, 673KB, 下载10次)
条码打印及识别的例子,适合于所有条码扫码器的识别
Barcode printing and identification of examples of suitable codec sweep all barcode identification (2007-09-28, PowerBuilder, 16KB, 下载53次)