Get previously selected objects

Hi,

I know how to get the client to select objects, for example with SSGET.

But how do I read the objects that are already selected, the moment the client types the command of my program?

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Example: I have 300 cameras, pointed in any direction.

I want to turn some of those cameras 90° clockwise.

- With QSELECT I first select the cameras with an angle between -45° and +45° (or those with color=blue; ...)

- Then I type my new command.

- Those cameras all get a rotation 90° less than they had.

Never mind, it looks like (ssget "I") does the trick.

I guess it should be P which stands for previous selected object(s) and L stands for last object created . if memory serves .

Yeah, it's the "I" I need. Just the pickfirst selection.

Here are all the options if you are interested .

Window/Last/Crossing/BOX/ALL/Fence/WPolygon/CPolygon/Group/Add/Remove/Multiple/Previous/Undo/AUto/SIngle/SUbobject/Object

Hi, Tharwat. I think he's talking about using the ssget function, where most of the available options are covered below (from AutoLISP Reference Guide 2013):

C Crossing selection.

CP Cpolygon selection (all objects crossing and inside of the specified polygon).

F Fence selection.

I Implied selection (objects selected while PICKFIRST is in effect).

L Last visible object added to the database.

P Last selection set created.

W Window selection.

WP WPolygon (all objects within the specified polygon).

X Entire database. If you specify the X selection method and do not provide a filter-list, ssget selects all entities in the database, including entities on layers that are off, frozen, and out of the visible screen.

:E Everything within the cursor's object selection pickbox.

:N Call ssnamex for additional information on container blocks and transformation matrices for any entities selected during the ssget operation.

:R Allows entities in a long transaction to be selected.

:S Allow single selection only.

:U Enables subentity selection. Cannot be combined with the duplicate (": D") or nested (":N") selection modes.

I left a space in the colon D option to avoid a smiley.

FWIW, here's a more complete reference than that offered by the formal documentation: ssget function reference.

(includes the undocumented modes)

Hi, Tharwat. I think he's talking about using the ssget function,

I guess you are right . thank you neophoible .