实训程序

实现打开和关闭光驱功能，调用API实现，实现打开和关闭光驱功能，调用API实现(To achieve open and close the CD-ROM features, API calls, achieving open and close the CD-ROM features, API calls to achieve)

Get Disk Free Space for Visual basic.

VB环境下简单的串口测试程序，测试两台主机通过串口是否能够实现数据传送，可以传送数字、字符串及汉字。(VB environment, a simple serial test program, test whether two hosts can be achieved through the serial data transfer, can send numbers, strings and characters.)

说明：  报刊订阅管理系统，C/S结构，界面简洁大方，功能简单实用(Newspaper subscription management system, C/S structure, the interface simple and generous, features simple and practical)

用VB实现一点即填，方便，简单，欢迎大家下载(VB realize that with a little filling, convenient, simple, welcomed everyone to download)

spreadtrum phone驱动是有些手机在连接电脑时出现要安装的一款驱动，解压后将文件夹内的所有文件都拷贝到C:WINDOWS，运行Install.bat，最后再连接你的手机就可以了。(spreadtrum phone)

VB获取和控制网页滚动条，请确保代码里所定义的网址可以访问，否则滚动条控制时会出错。正常情况下，当窗体的控件加载完网址后，可通过窗口中的上、下、左、右控制按钮来控制网页的上下左右滚动，每点击一次，网页就相应的滚动一次，如演示截图所示。(VB web access and control the scroll bar, make sure that the code defined URLs can be accessed, or an error occurs when the scroll bar control. Under normal circumstances, when the form s controls finished loading site, through the window, down, left and right control buttons to control scrolling down the page about every click, the page on the appropriate scroll once, such as Demo Screenshots shown.)

一个图像打印.还有图像预览，图像显示，调去打印机(An image printing. There the image preview, image display, transfer to the printer)

说明：  VB语言写的按键追踪控件及应用，含有调用源码。(The key tracking control written in VB language and its application contain calling source code.)

一種VB不規則打印技術的探討，可以在VB編程中使用，試試其中的函數。(A kind of irregular printing of VB, VB programmers can use, try one of the function.)