Specifications

Advantech Co., Ltd. 7 PCI-1761 User’s Manual
www.advantech.com
Programming with DLL Driver Function Library
Advantech DLL driver offers a rich function library to be utilized in vari-
ous application programs. This function library consists of numerous
APIs that support many development tools, such as Visual C++, Visual
Basic, Delphi and C++ Builder.
According to their specific functions or services, those APIs can be cate-
gorized into several function groups:
❏ Digital Input/Output Function Group
❏ Counter Function Group
❏ Port Function Group (direct I/O)
❏ Event Function Group
For the usage and parameters of each function, please refer to the Func-
tion Overview chapter in the DLL Drivers Manual.
Troubleshooting DLL Driver Error
Driver functions will return a status code when they are called to perform
a certain task for the application. When a function returns a code that is
not zero, it means the function has failed to perform its designated func-
tion. To troubleshoot the DLL driver error, you can pass the error code to
DRV_GetErrorMessage function to return the error message. Or you
can refer to the DLL Driver Error Codes Appendix in the DLL Drivers
Manual for a detailed listing of the Error Code, Error ID and the Error
Message.