Bug 42796 - Macro assigned to dataform Before Unload or While Unloading events are not called when form container is closed

[mcmurchy1917-libreoffice at yahoo.co.uk]

Hi All

I've fallen foul of this bug in recent days so have decided to have a look at 
it to see if I can provide a patch.

It's been around since November 2011 so possibly no one's looked at it 
recently.

In the bug report it was confirmed that a macro assigned to either the Before 
Unloading or When Unloading events of a dataform are not called when the form 
document is closed.

However, when editing a form and the "Design Mode" option is toggled the 
events are called. Also the events when the form is loaded are called under 
all circumstances.

So hopefully here should be enough clues there to provide a solution.

As I haven't provided a patch for a couple of year might take me some time to 
get back into the swing of things.

If anyone has any suggestions as to where to look fist it would be gratefully 
appreciated.

Posted this to the bug report and the mailing list

Alex

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