(xdsize list)

Determine how much space a list takes up as xdata.

This function returns the size (in bytes) that a list occupies as extended entity data. The list argument is a list of extended data that contain an application name registered with the regapp function. When the application name is unregistered, progeCAD displays the error message, "Invalid application name in 1001 group nil."

Example

NOTE  An invalid list creates an error message that is stored via an error code in system variable ERRNO.

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(xdroom entity-name)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language