set objects to nothing

hi,

my program is starting to work slower and slower. I heard from someone that i need to set my variables to nothing at the end of each procedure. I thought that variables automatically lose their value and their appointed space when a routine finishes? So do i have to set all the variables to nothing? or just certain types?

Emmanuel

 

Gets slower doing what ?


--
Saludos, Ing. Jorge Jimenez, SICAD S.A., Costa Rica

that i need to set my variables to nothing at the end of each procedure. I
thought that variables automatically lose their value and their appointed
space when a routine finishes? So do i have to set all the variables to
nothing? or just certain types?

 

when i first start acad and run the program it runs pretty fast. after several times it starts to run slower and slower. when i restart acad, it runs fast again. The program mainly inserts blocks with attributes, zooms, highlights, opens and closes forms etc.

 

What you're describing sounds like when you run out of memory and disk
paging steps in, but then AutoCAD and any other running app should crawl
also.
Doesn't seem like something a normal VBA macro could do, unless you're
looping over every entity in the drawing many times , and as the dwg gets
bigger the the loop gets longer.

--
Saludos, Ing. Jorge Jimenez, SICAD S.A., Costa Rica

several times it starts to run slower and slower. when i restart acad, it
runs fast again. The program mainly inserts blocks with attributes, zooms,
highlights, opens and closes forms etc.

 

Look at the help for the UNDOCTL system variable and the UNDO command.

 

i looked at it, but what does it have to do with my program slowing down?

 

I has to do with when you create objects, memory is allocated for that
object with a reference to the AutoCAD application. When your program
keeps on running with the creation of objects it starts to slow down
for autocad first and then for the rest of the operating system if
none of the objects are destroyed.

As stated before when AutoCAD is closed down and restarted the program
runs fast again is because when autocad is shut down all memory
references associated with the application are wiped.


In my experience with excel, word and autocad at the end of all
procedures/error trapping, I destroy all of the objects that I have
created and erase all arrays as well by the following:

Set object = Nothing
then followed by a small time delay (eg 200ms) to allow the operating
system/program time to destroy the object properly

and

Erase array
then followed by a small time delay as well



I hope this helps

Anthony