Hi Matt,

here comes the first bunch of comments:

On 06/02/2011 12:40 PM, Matt Clarkson wrote:
Hi there,

briefly. Please can people help me out with these questions?

1. I'm looking at the segmentation stuff, is this documentation up to date? http://docs.mitk.org/nightly-qt4/ It has references to Qt3, so I was wondering if it is still valid.
Yes that is the correct URL. I could not spot the Qt3 references right away, can you point me to them so that I can remove them?

2. I have been looking at ExtApp, and at random intervals, (I haven't worked out a pattern yet, or a cause), the main toolbar disappears. Im on a Mac. Is this just me?
I asked one of our Mac guys and he experiences the same issue. His work-around is to move the mouse repeatedly over the empty toolbar area during application startup...

We don't know the exact cause yet (it's just a regular Qt toolbar, so maybe it is a Qt Mac bug...).

3. If I load an image, and then select the segmentation plugin, then very often the "New Segmentation" button is disabled. If however, I make sure the plugin is visible when the application starts, then as soon as I load an image, the "New Segmentation" button becomes enabled.
Hmm... normally, the segmentation plugin reacts to selections in the datamanager. If there is no valid entry selected in the datamanager, the button will be disabled.

4. I'm not quite clear, on when I should use the Message<>, Message1<>, Message2<> etc. classes. Is there any background information I should be reading?
The numbers only denote the number of arguments, your message can carry. The usage is the same. Documentation and an example can be found here:

http://docs.mitk.org/nightly-qt4/classmitk_1_1Message.html

If you want to try new stuff and live on the bleeding edge, you can have a look at the CTK Event Admin http://www.commontk.org/index.php/Documentation/CTK_Plugin_EventAdmin_local
which is a different approach to sending events...

Many thanks as always.

Matt

Best,
Sascha
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