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Across the Boards



Communications Device Drivers

Section 5 - General Configuration and Usage Information

Page 199

cfSOFTWARE Confidential,



2000

5.13 CFXVXDT/CFXVXDS Usage (continued)

The following should be considered:

- Explicit directory specifications work as expected. An explicit directory specification will contain

a drive letter followed by a colon and a backslash. One exception is when a drive letter is mapped

locally to the DOS session and is not mapped the same way for CFXVXDS.

Examples:

“c:\cfx”

“c:\app\drivers”

- Avoid any relative directory references. A relative directory depends on the execution

environment in order to fully resolve the reference, and since these will probably be different for

the DOS application and CFXVXDS, they will resolve differently.

Examples:

avoid

“drivers” - “drivers” subdirectory of current directory

avoid

“e:” - current directory on E:

avoid

“d:atb” - “atb” subdirectory of current directory on D:

avoid

“.” - current directory

avoid

“..” - parent of current directory

avoid

“\stuff” - “\stuff” directory on current drive

- Avoid environment variable references in the search path unless it can be guarenteed that the

environment variable will be the same for both the ATB/DOS application and CFXVXDS. Avoid

the “current directory plus environment variable” reference for the reasons in this paragraph as

well as the prior.

Examples:

avoid

“%cfxdir” - path in the “cfxdir” environment variable

avoid

“+cfxdir” - current directory plus “cfxdir”

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Eicon Networks CX1 Spezifikationen Seite 49