[solved]QGraphicsPolygonItem vc2010(32bit) QT5.4 crash

SGaist · wrote on 17 Feb 2015, 00:11

Hi and welcome to devnet,

What does a run through the debugger tell you ?

mmkider · wrote on 17 Feb 2015, 02:10

I only drag and drop Conditional button into main widget, and I get a error.

"Qt Creator Debug info Screenshot ":http://f.sync.hamicloud.net/_oops/@DOCVIEW?oops_id=mmkider&oops_link=qtc&download_key=d41d8cd98f00b204e9800998ecf8427e&name=QGraphicsPolygon_Crash.png

"Qt Creator Debug info Screenshot2":http://f.sync.hamicloud.net/_oops/@DOCVIEW?oops_id=mmkider&oops_link=hrq&download_key=d41d8cd98f00b204e9800998ecf8427e&name=QGraphicsPolygon_Crash2.png
Thank you :)

SGaist · wrote on 19 Feb 2015, 20:15

Can you describe what you do exactly to trigger the crash ?

mmkider · wrote on 22 Feb 2015, 16:29

Hi~

I trigger conditional button and click mouse in the main widget.
then I get the crash.

Thank you :)

SGaist · wrote on 23 Feb 2015, 20:51

Looks like something windows specific, can't reproduce this on OS X. Do you have the latest OpenGL drivers installed for your machine ?

mmkider · wrote on 24 Feb 2015, 01:52

Hi

I try the latest OpenGL drivers for NVIDIA GeForce GT630M.
Package: " 347.52-notebook-win8-win7-64bit-international-whql.exe.":http://www.nvidia.com/download/driverResults.aspx/81879/en-us

But I got the same.
"Qt Creator Debug info Screenshot3":http://f.sync.hamicloud.net/_oops/@DOCVIEW?oops_id=mmkider&oops_link=rf6&download_key=d41d8cd98f00b204e9800998ecf8427e&name=QGraphicsPolygon_Crash3.png

Thank you for response.

SGaist · wrote on 25 Feb 2015, 00:36

Are you running a release build ?

mmkider · wrote on 25 Feb 2015, 01:25

Hi
I try run release version,then got the same(crash).

"Qt Creator Debug info Screenshot4
":http://f.sync.hamicloud.net/_oops/@DOCVIEW?oops_id=mmkider&oops_link=elc&download_key=d41d8cd98f00b204e9800998ecf8427e&name=QGraphicsPolygon_Crash4.png

Thank you for response.

mmkider · wrote on 26 Feb 2015, 06:26

Fixed this issue at the Qt 5.4.1
version：qt-opensource-windows-x86-msvc2010_opengl-5.4.1

:)

SGaist · wrote on 26 Feb 2015, 08:33

Good but out of curiosity: were you also starting both the debug and release version from explorer ?

mmkider · wrote on 26 Feb 2015, 08:45

Yes,
Release and debug version of "diagram Scene Example" work fine.

:>

SGaist · wrote on 26 Feb 2015, 09:17

Starting an application from explorer requires the same deployment phase as you would need to distribute your application.

Qt Creator modifies the run environment so that you are sure to be using the correct Qt version when running an application you just built.

mmkider · wrote on 26 Feb 2015, 10:16

[quote author="SGaist" date="1424942222"]Starting an application from explorer requires the same deployment phase as you would need to distribute your application.

Qt Creator modifies the run environment so that you are sure to be using the correct Qt version when running an application you just built.
[/quote]

Thank your recommend,I will use this suggest on future.
I just learning Qt now, so I remove old version(Qt 5.4), and install Qt 5.4.1。

:)