Function Entry: VL-BT

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Function Entry: VL-BT

Name

vl-bt

Class

BricsCAD Error-Control Function

Syntax

(vl-bt [depth ])

Arguments and Values

  • depth (optional) number, specifying the depth of the
  • backtrace;
  • if depth
  • is omitted, the default of
  • -1 is
  • applied

Description

This function returns the actual error back trace information as a list of strings.

Return Values

list of error backtrace information strings, as shown on commandline, optionally restricted to specified depth

Examples

(vl-bt) full error output as
list of strings

(vl-bt 5) error output as list of strings,
maximum length of the list (depth of backtrace) is 5

Availability

  • AutoCAD 2026: not documented.
  • BricsCAD V26: documented.
  • Status: BricsCAD-only.

Source Notes