The C++ DLL modules implement DDTT device-specific stub functions. Creating DDTT device interfaces requires knowledge of the C++ programming language and a detailed understanding of the device driver to be tested (such as which functions the device is capable of performing). The DDTT provides many common functions, such as log file management and cover routines for the OS/2 APIs.

DDTT device stub function developers can use all of the functions described in Stub Utility Functions.


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