## Display Device Driver Reference for OS/2

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### Specifying Command Options

All command-line options are specified with either a hyphen (-) or a slash (/) prefix, followed by an alphabetic character (not case-sensitive), followed immediately by the option value, if any, with no intervening spaces. The hyphen and slash can be used interchangeably. Following are examples of DTT command lines:

      Load all DLLs in the current directory and set the logging level:

          DTT -T*..DLL -L8

       Preload the GRELINE DLL; also load a test-case index.
       Search LIBPATH to locate the DLLs.

          DTT /tgreline.dll -ntestindx.ndx -s

See DTT Command-Line Options Summary for a summary of DTT command-line options. Executing DTT with the -? command-line option displays a list of the valid command-line options.