On Tue, 9 May 2017, Michael W. Vogel via Lazarus wrote:
Am 09.05.2017 um 15:15 schrieb Michael Van Canneyt via Lazarus:
Hi,
I manage to reliably reproduce it !
1 Open attached project.
2 Double click MainMenu1 to edit
3 Under MenuItem5, delete MenuItem14,13,12,11
(I use the - button in the menu editor)
4 The last menu item under MenuItem5 is then 'Action3'
5 Add new menu item (I click 'add menu item' below the Action3 item)
6 Click on Action 3
7 Click on the newly added (in step 5) MenuItem11 --->> BOOM
Never fails.
The delete step 3 is important. Without that, I don't get a crash.
I then tested deleting a single item instead of 4 items as described
above,
then I also get a crash. So as soon as a delete is performed - boom...
Thank you for your exact explanation and test project! But sorry again,
again I don't get it.
I have tested here:
64bit Linux Mint 18.1 Cinnamon, GTK2 version 2.24.30, Lazarus 1.9.0
r54844 FPC 3.0.2 x86_64-linux-gtk2
This is the exact version I am using. (lazarus SVN version may differ, but
it is the day before yesterday's SVN version)
Maybe it is a problem with your GTK2 version?
Maybe it is a problem with your OS?
They are the same as yours.
Maybe it was fixed in meantime?
Maybe you have a broken installation of Lazarus?
Define broken ? It's a clean SVN update.
Maybe it is a timing problem (as my development pc was out of order, I
bought a relativ fast Core I5, so I'm not fast enough to click)?
Clicking speed has nothing to do with it.
I can wait a second, 2 seconds. Doesn't matter.
The only thing that matters is the delete.
I wish to point out that there is a LCL warning about freeing an item with
LCLCount>1, which clearly points at a logic error: something is probably
being freed twice.
Maybe it is better to open a bugreport about that issue? Then we can
better gather informations about it.
I will post the steps and project in the bugtracker.
Michael.
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