NAME
    DeleteVar -- Deletes a local or environment variable (V36)

SYNOPSIS
    success = DeleteVar( name, flags )
    D0                    D1    D2

    BOOL DeleteVar(STRPTR, ULONG )

FUNCTION
    Deletes a local or environment variable.

INPUTS
    name   - pointer to an variable name.  Note variable names follow
             filesystem syntax and semantics.
    flags  - combination of type of var to delete (low 8 bits), and
             flags to control the behavior of this routine.  Currently
             defined flags include:

             GVF_LOCAL_ONLY  - delete a local (to your process) variable.
             GVF_GLOBAL_ONLY - delete a global environment variable.

             The default is to delete a local variable if found, otherwise
             a global environment variable if found (only for LV_VAR).

RESULT
    success - If non-zero, the variable was sucessfully deleted, FALSE
              indicates failure.

BUGS
    LV_VAR is the only type that can be global

SEE ALSO
    GetVar(), SetVar(), FindVar(), DeleteFile(), <dos/var.h>