Also, troubleshooting tips: enable logging if possible, check for API documentation, look into SDK forums or support channels if available.
Key functions could include initialization, capture, matching, and cleanup. For each, provide a brief description. Maybe give an example in C++ using Windows API calls. For instance, using LoadLibrary and GetProcAddress to access the DLL functions. Need to make sure the code is correct, maybe reference ZKTeco's SDK documentation if available. libzkfpdll
In code examples, show how to initialize the device, read a fingerprint, compare with a stored template, and handle the result. Pseudocode might be sufficient if actual SDK code is proprietary. troubleshooting tips: enable logging if possible