You should not install Itcl over the ActiveTcl installation (Itcl
is already part of the ActiveTcl distribution).

ActiveTcl comes bundled with [incr Widgets] 4.0 as well as BLT
and I believe Tix also (so you shouldn't need to install any of
these).

vTcl 1.5.2 does not recognize Iwidgets 4.0 but it is easy to fix this.
In the /lib folder of the vTcl distribution, open the lib_itcl.tcl file
in a text editor and replace:

package require Itcl 3.0
package require Itk 3.0
package require Iwidgets 3.0

by

package require Itcl
package require Itk
package require Iwidgets

CG



|--------+------------------------------------->
|        |          vtll <[EMAIL PROTECTED]>     |
|        |          Sent by:                   |
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|        |          eforge.net                 |
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|        |          11/22/2001 02:25 AM        |
|        |                                     |
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  |       Fax to:                                                                      
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  |       Subject:     [vtcl-user] vtcl on windows, error working with itcl            
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Hi all,

My installation procedure starts with the ActiveTcl
8.3.4.1-8 installation into C:\Tcl directory. Then I
install blt2_4u-for-tcl83.exe, and
tix8.2.0b1-setup.exe into C:\Tcl. Then I uncompress
itcl3.2.1_beta2.zip into C:\Tcl and overwrite all the
itcl related files when prompted. After which I
installed vtcl 1.5.2.
Starting vtcl gives me all the libraries supported. I
insert a toplevel window and it works fine. However,
when I intend to place a combo box from the iwidget
onto the toplevel window, I received the "New Toplevel
1: wish83.exe -Application Error -> The instruction at
"0x00000000" referenced memory at "0x00000000". The
memory could not be "read". Click on OK to terminate
the program, Click on CANCEL to debug the program."
The problem lies with the itcl I added in cos
previously with blt and tix, everything was alright.
Could someone help me? Thanks in advance.

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