ACAD2002 and ACAD2000LT

I made my application in VB importing reference "AutoCAD 2000 Type Library"... The application runs well with AutoCAD2002. I test my application with autoCAD2000LT but it doesn't work. I see an ActiveX error while the application tries to connect Acad2000LT...
Any ideas? I don't know what the matter is...

Diego Alejandro Talledo

 

Hi,

To run any form of VBA or Lisp you need the LT upgrade. It called AutoCAD.


Laurie Comerford
CADApps
www.cadapps.com.au

Library"... The application runs well with AutoCAD2002. I test my
application with autoCAD2000LT but it doesn't work. I see an ActiveX error
while the application tries to connect Acad2000LT...

 

Ok, but I've made my form in Visual Basic 6.0 for this reason... I have a program that work with ACAD LT....

 

You need to use DDE
--
Saludos, Ing. Jorge Jimenez, SICAD S.A., Costa Rica

program that work with ACAD LT....

 

What is it? I've never heard about DDE...
Thanks
Diego Alejandro Talledo

 

Look over here:
http://members.iinet.net.au/~bigbyte/vb.htm#dde

 

If you think it is a substitute for VBA think again
DDE basically allows you to send text strings to the AutoCAD command line
To get any sort of data (including User input) back from AutoCAD you have to
resort to horrible hacks such as writing and reading the LOG file, exporting
attributes to a text file and exporting entities to a DXF file.

For an example of how to initialise a DDE link see my web site
http://members.iinet.net.au/~bigbyte/vb.htm

--
Regards
Tom Roberts
__________________________
MechWest Design & Drafting
Perth, Western Australia

 

Hi, first thanks for your help...
I made my app with AcadApplication object and AcadDocument object. If I correctly unterstood, with DDE I can send commands to AutoCAD LT (as I type then in command line), right?
But my macros in VB6 are very complicated and I can't resolve my problem if I use only standard AutoCAD commands.
Tom, if I need to know how long I line is, or if I need to know how many lines does the user select, I have to do the horrible hacks you say to me?

Thanks
Diego Alejandro Talledo

 

This is going to get ugly

lines does the user select, I have to do the horrible hacks you say to me?

To get the length of a line you could do something like this:
turn on the AutoCAD logfile by sending the command LOGFILEON
send the LIST command
open the log file with you VB app
read the logfile to get the length of the line
turn off the log file by sending the command LOGFILEOFF

To find out how many objects the User selected you could use a similar
method with the logfile and watch for the line:
Select objects: 1 found, 2 total

You are going to have to find solutions to all sorts of problems like
synchronising your application with the User selecting an object. What if
the User doesn't select a line? What if the User doesn't pick anything?