Introduction - If you have any usage issues, please Google them yourself
delphi serial port to do the parking lot toll system: install sql server, which sa user does not have a password, and then use the sql directory of the sql file to establish the new database. 3. The source code configuration: (1) to join the ActiveX control MSComm, otherwise the program does not compile. (2) If Delphi does not NMPOP3 control (located in FastNet) control group, the program can not compile in Delphi 6 are generally the default. (3) procedures used in the icon file in the program' s source code directory res folder, readers can choose their own icon file, where you can arbitrarily change is generally not a see a fatal error.