Check Resource

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# Check Resource

Subroutine Name | Executable Example | Viewable Example | Resources
--- | --- | --- | ---
W3CHECK-RESOURCE | E3RESOUR | E3RESOUR | E3SAVE.HTML

> Description

>   Check if a read a resource file exists at the given library. With the create flag, a new empty resource can be created if one does not already exist. If no library is specified, use the current library.

> Parameters

>       1 W3LIBRARY    (A8) BY VALUE OPTIONAL  /* i /o : Natural Library ID
>       1 W3FILE       (A) DYNAMIC BY VALUE    /* i /m : File Name
>       1 W3CREATE     (L) BY VALUE            /* i /m : If true, create new file
>       1 W3PATH       (A) DYNAMIC             /*  o/m : Resource path
>       1 W3RESPONSE   (I4) OPTIONAL           /*  o/o : Response

>   If the `W3RESPONSE` parameter is not specified, the Web Interface error processing is triggered if an error occurs. If the `W3RESPONSE` parameter is specified, the parameter contains the Natural message number if an error occurred, or zero on success.

> How To Invoke

>       PERFORM W3CHECK-RESOURCE W3LIBRARY W3FILE W3CREATE W3PATH
>       PERFORM W3CHECK-RESOURCE " " 'test.html" TRUE W3PATH
>       PERFORM W3CHECK-RESOURCE 1x 'test.html" TRUE W3PATH
>       PERFORM W3CHECK-RESOURCE W3LIBRARY W3FILE W3CREATE W3PATH W3RESOURCE

> Restriction:

>   Check Resource is only available on Natural for Windows and Linux supporting non-natural files/resources.