并口编程的源程序，用来控制各种并口的设备如打印机等，可做此类参考-parallel programming source, parallel port to control various devices such as printers, to do such reference 下载
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操作并口可以直接控制打印机相关的设备。可以做VC＋＋学习设备控制的例子-operate parallel printers can directly control-related equipment. Do VC + + learning examples control equipment 下载
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C#控制LPT并口打印,直接写并口,打印机不需要安装驱动程序.- 下载
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(编程控制示例）（为汇编代码） 此段代码为并口向打印机进行写数据，并发送控制信息。 -(control sample programming) (code for compilation) Despite code to the parallel port printer to write data, Send information and control. 下载
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公司打印机转接板的一段小代码 主要功能是从ARM上通过I2C读取数据，然后用并口控制打印机打印，使用单片机控制-companies printer adapter plate section of the main functions of the small code is adopted from ARM I2C read data, and then use the parallel port printer control, the use of SCM control 下载
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用C语言通过MCS-51 的并口控制打印 用于 沈阳新荣达电子 微型打印机- 下载
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在Delphi中，如果要在一台PC电脑上同时控制多台打印机，并且各台打印的纸张大小不同，此函数非常有用。 如果要只定把数据打印在那一台打印机，不需要控制打印机端口，只需要使用打印机索引即可，默认打印机为第一台打印机，以后按顺序排序，但第一台打印机的索引号为 –1并不是0. -in Delphi, in a PC computer can control many printers, and the print paper units of different sizes, this function very useful. If only to set the print data which printers do not need to control the printer port, only need to use the printer can Index, the default printer for the first printers, according to the order after order, but the first printers, the index is 0 to -1. 下载
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E:\Visual_C__MFC扩展编程实例 例18 动态地抓取应用程序的屏幕图像并将其打印。 上一个实例打印的是文档的报表，而不是当前出现在屏幕上的内容。在本例中，将实现 屏幕抓取并打印其内容。M F C 为打印视提供了有限的支持， 但只要用M F C 在 C Vi e w : : O n D r a w ( )中所提供的设备环境，就可以绘制自己的视。在打印视的时候， M F C只需调 用具备打印机设备环境的O n D r a w ( )函数即可。但是，如果不绘制自己的视，例如，用一个或 者一个以上的控件窗口填充自己的视就不会打印任何东西。每个控件将使用自己的设备环境 将自己打印到屏幕，因此打印视的唯一途径就是抓取屏幕(拷贝其内容到一个位图对象)并将其 打印到打印机。由于该功能整个与位图相关，因此将该功能封装到了位图类中。-E : \ Visual_C__MFC expand programming examples cases 18 crawls dynamic applications screen images and their Print. Print example, a document is a statement, rather than the current appeared on the screen content. In this case, to achieve the screen crawls and print its contents. M F C Print, as provided limited support, but as long as M F C in C Vi e w : : O r a n D. w (), which provided the equipment environment, we can draw our own consideration. In Print, as when M F C only with the printer device called the environment O D r a n w () function can be. However, if we do not draw their attention, for example, or one with a control over their windows filled as it will not print anything. Controls will use their own equipment to their environment to Print Screen, Therefore, as Print i 下载
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不足 1。无并发控制。多客户端操作容易出错， 2。无社保购药接口，无ic卡,扫描仪接口，出款方式简单，不支持欠帐 3。数据库设计不太理想 4，库存采用加权移动平均法，用先入先出法更合理， 5。程序有些处理方法采用了非正常手段，不易维护 6。报表没有采用票据打印机， 7。统计功能还要完善 8。所在与库存操作都采用一个tcr（tdataset）不合理， 9。没有处理药品折扣-less than one. No concurrency control. Multi-client operation, prone to error, 2. Interface procuring medicines no social security, no id card scanner interface, a simple way out, and does not support against three. Database design is not ideal four, stock weighted moving average, using the first-in, first-out method more reasonable, 5. Some procedural approach adopted by non-normal means, is hard to maintain 6. Statements do not use paper printers, 7. Statistics also improve the function of eight. Lie with the stock used to operate a tcr (tdataset) unreasonable, 9. Does not address drug discounts 下载
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频率自动测量系统是一个用于测量电子元件的软硬件综合系统。本系统由几个部分组成，主要包括计算机与测试仪器的通信模块、数据处理模块、数据管理模块、数据分析模块以及控制界面。本软件的最大特点就是可以在完全无人值守的情况下，自动测量多个元件，并能保证测试过程安全、可靠。即利用RS232串口通信方式保证计算机与设备进行正常的通信。本软件是一个集设备控制、数据传输、数据处理和报告打印为一体的工业控制软件，可广泛应用于对于电子元器件性能要求较高的企业之中。-frequency automatic measurement system is a measurement of electronic components for the hardware and software integrated system. The system consists of several components, including the main computer and communications test equipment modules, data-processing module, Data Management module, data analysis and control interface module. The biggest feature of the software is that we can completely unmanned circumstances, automatic measurement of a number of components, and the testing process will ensure safe and reliable. Namely, the use of RS232 serial communication and computer equipment to ensure the normal communication. The software is a set of equipment control, data transmission, data processing and reporting for the integration of Print industrial control software, can be widely used 下载
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