TK WISH Question

[trtcl]

Hi,
I use tcl on unix at work (never used tk) but wanted to do some other projects at home, and i use mac
and since mac has tcl/tk built-in I can run my tcl programs from the mac terminal.

My question is,

when I do the fallowing in my terminal window

% wish
% button .hello -text "my name is trtcl"
.hello
% pack .hello

a window pops up with "my name is trtcl"


but when i insert the fallowing lines in a .tcl file and run it I get the fallowing error message "invalid command name "label"

#!/bin/sh
exec wish "$0" "$@"
label .hello -text "my name is trtcl"
pack .hello

So what is the correct way to have the tk lines in a file ? or what I am doing wrong ?


Thanks in advance

 

[feherke]

Hi

what I am doing wrong ?

You missed the comment.

[tt]exec[/tt] will run [tt]wish[/tt] passing the same file to it. But [tt]exec[/tt] is a shell built-in, not available in Tcl/Tk.

But both [tt]tclsh[/tt] and [tt]wish[/tt] interpret backslash ( \ ) at the end of line as line continuation even in comments. So, putting a comment with line continuation immediately before the [tt]exec[/tt] line will make it a comment in Tcl/Tk, but leaves it visible for the shell.

#!/bin/sh
[highlight]# \[/highlight]
exec wish "$0" "$@"
label .hello -text "my name is trtcl"
pack .hello

Feherke.

http://free.rootshell.be/~feherke/

 

[trtcl]

Hi thanks for your reply,

I changed it as you suggested but I still have the same error msg.

% source tktest.tcl
invalid command name "label"


and my tktest.tcl is as fallows;


#!/bin/sh
# \
exec wish "$0" "$@"
label .hello -text "my name is trtcl"
pack .hello

 

[feherke]

Hi

It works for me.

But how that [tt]source[/tt] comes into view ?


Feherke.

http://free.rootshell.be/~feherke/