2012

the command's group name, followed by another period (.). For example, the
MTEXT command can be accessed with .acad_mtext.mtext.
To determine command names and groups of an ObjectARX application, use
the
ARX (page 105) command, and choose the Commands option to see a
listing of all currently loaded ObjectARX commands and their group names.
See also:
Use Built-in Commands in Macros
UNDO
Reverses the effect of commands.
Summary
UNDO displays the command or system variable name at the Command
prompt to indicate that you have stepped past the point where the command
was used.
NOTE
UNDO has no effect on some commands and system variables, including those
that open, close, or save a window or a drawing, display information, change
the graphics display, regenerate the drawing, or export the drawing in a
different format.
List of Prompts
The following prompts are displayed.
Enter the
number (page ?) of operations to undo or [Auto
(page ?)/Control (page ?)/BEgin/End (page ?)/Mark/Back
(page ?)]: Enter a positive number, enter an option, or press Enter to undo
a single operation
Number
Undoes the specified number of preceding operations. The effect is the same
as entering u multiple times.
Auto
Groups the commands in a macro, such as a menu macro, into a single action,
making them reversible by a single U (page 1071) command.
Commands | 1089