How to create an image of part of an app?

[Helmut Giese]

Hello out there,
for documentation I would like to produce images from my app in
different states. I don't want to take screen shots because
1) they are too large and
2) I want to do it programmatically (from within the app, so to say.
This means that I can run a test script and have it produce new images
whenever something changes.)

I am aware of
image create photo -format window -data $wdgt
but I have the following problem:
In the central part I have on the left a canvas and on the right a
BWidget TitleFrame with a text widget inside.[pack]ed side by side. I
can get an image of the canvas but I want to get the canvas _and_ the
TitleFrame together with the sunken relief and all other visual fluff,
because I want it to look exactly as it appears on the screen.

I tried to [pack] both into a common frame and let the above
image create ...
command loose on this frame, but the result was utterly disappointing:
The canvas and the text widget didn't show up at all and all I
basically got was what was probably the border around the text widget.

Any ideas on what to try next would be greatly appreciated.
Best regards
Helmut Giese

[Helmut Giese]

If someone else poses the same question in the future, I think I
follow up with what I found on the wiki:
http://mini.net/tcl/9127 by David Easton is just what the doctor
ordered in this case.
Many thanks David, this comes extremely handy.

A nice weekend to all of you.
Helmut Giese

[David Easton]

Helmut Giese wrote:
> Many thanks David, this comes extremely handy.

I'm glad you found it useful.
David.