# Start supporting Qt6?
**URL:** https://discourse.paraview.org/t/start-supporting-qt6/11239
**Category:** Development
**Created:** [January 23, 2023, 6:20pm UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239 "2023-01-23T18:20:10Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Neumann-A](https://discourse.paraview.org/u/Neumann-A)
#### Post date: [January 23, 2023, 6:20pm UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/1 "2023-01-23T18:20:10Z")
Any plans to support Qt6? For vcpkg I basically updated everything so that it can move other stuff like opencv to qt6. (see [[vtk|opencv4|openimageio] Switch to Qt6 by Neumann-A · Pull Request #29078 · microsoft/vcpkg · GitHub](https://github.com/microsoft/vcpkg/pull/29078))
It seems to work.
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 24, 2023, 10:01am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/2 "2023-01-24T10:01:59Z")
Hi @Neumann-A
So it works ?
Then it should be as trivial as addinc a CI to test it and updating docs.
Best,
---
### Author:  [@Neumann-A](https://discourse.paraview.org/u/Neumann-A)
#### Post date: [January 24, 2023, 10:11am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/3 "2023-01-24T10:11:55Z")
You still need to update/patch the long deprecated stuff.
Which means
- replace QRegExp with QRegularExpression
- replace setMargin(x) with setContentsMargins(x,x,x,x)
- replace some init(this) to initFrom(this)
- replace QDesktopWidget/QApplication::desktop() with this-\>screen()
- add a few missing includes
- deactivate xmlpattern since the Qt module has been long deprecated.
- link to Qt6::Core5Compat since I was lazy and didn’t replace all QRegExp.
But overall the changes are rather trivial and should work with Qt5.12.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 24, 2023, 10:22am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/4 "2023-01-24T10:22:27Z")
FYI @ben.boeckel @Sankhesh_Jhaveri @Lucas_Givord
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### Author:  [@Neumann-A](https://discourse.paraview.org/u/Neumann-A)
#### Post date: [January 24, 2023, 5:43pm UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/5 "2023-01-24T17:43:29Z")
Compiling the client in WSL and starting it to display in VcXserv also worked. Only thing I see is
```auto
neumann@Iluinrandir:~/vcpkg/packages/paraview_x64-linux/tools/paraview$ ./paraview
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-neumann'
qt.core.qobject.connect: QObject::connect: No such slot QTableView::sortByColumn(int)
```
which seems to be a current bug in
[https://gitlab.kitware.com/paraview/paraview/-/blob/master/Qt/Components/pqDataInformationWidget.cxx#L135](https://gitlab.kitware.com/paraview/paraview/-/blob/master/Qt/Components/pqDataInformationWidget.cxx#L135)
not defining the sort order
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### Author:  [@aron.helser](https://discourse.paraview.org/u/aron.helser)
#### Post date: [January 24, 2023, 7:20pm UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/6 "2023-01-24T19:20:40Z")
Hi Alexander,
We’ve had several inquiries about getting ParaView to compile and work in WSL - do you think you could post a recipe for how you did it? Are you able to use accelerated graphics, i.e. the native graphics card, when running ParaView?
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### Author:  [@Neumann-A](https://discourse.paraview.org/u/Neumann-A)
#### Post date: [January 24, 2023, 9:02pm UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/7 "2023-01-24T21:02:14Z")
My recipe is just `vcpkg install paraview[tools]` everywhere (with said PR). Of course the required x deps for Qt need to be installed in WSL. I don’t think this is native OpenGL with VcXserv:
but i also don’t have vGPU drivers for that graphics card. If I set `LIBGL_ALWAYS_INDIRECT=1` I’ll get the following error:
```auto
( 0.467s) [paraview]vtkOpenGLRenderWindow.c:481 ERR| vtkXOpenGLRenderWindow (0x561f2af318e0): Unable to find a valid OpenGL 3.2 or later implementation. Please update your video card driver to the latest version. If you are using Mesa please make sure you have version 11.2 or later and make sure your driver in Mesa supports OpenGL 3.2 such as llvmpipe or openswr. If you are on windows and using Microsoft remote desktop note that it only supports OpenGL 3.2 with nvidia quadro cards. You can use other remoting software such as nomachine to avoid this issue.
( 1.041s) [paraview]vtkOpenGLRenderWindow.c:481 ERR| vtkXOpenGLRenderWindow (0x561f29ad6720): Unable to find a valid OpenGL 3.2 or later implementation. Please update your video card driver to the latest version. If you are using Mesa please make sure you have version 11.2 or later and make sure your driver in Mesa supports OpenGL 3.2 such as llvmpipe or openswr. If you are on windows and using Microsoft remote desktop note that it only supports OpenGL 3.2 with nvidia quadro cards. You can use other remoting software such as nomachine to avoid this issue.
Loguru caught a signal: SIGSEGV
( 1.059s) [paraview] :0 FATL| Signal: SIGSEGV
```
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 25, 2023, 9:10am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/8 "2023-01-25T09:10:43Z")
@Neumann-A great work.
Could you open to separate merge request on gitlab to fix Qt6 and WSL for ParaView ?
Best,
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### Author:  [@Neumann-A](https://discourse.paraview.org/u/Neumann-A)
#### Post date: [January 25, 2023, 9:48am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/9 "2023-01-25T09:48:36Z")
Done. [https://gitlab.kitware.com/paraview/paraview/-/merge\_requests/6134](https://gitlab.kitware.com/paraview/paraview/-/merge_requests/6134)
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 23, 2023, 4:34pm UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/10 "2023-03-23T16:34:54Z")
Qt6 experimental support has been merged, thanks @Neumann-A !
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### Author:  [@untereiner](https://discourse.paraview.org/u/untereiner)
#### Post date: [December 30, 2024, 10:44am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/11 "2024-12-30T10:44:18Z")
Hello @mwestphal, is Qt6 support still considered as experimental ?
I have seen that paraview’s superbuild does require Qt5
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 30, 2024, 10:45am UTC](https://discourse.paraview.org/t/start-supporting-qt6/11239/12 "2024-12-30T10:45:39Z")
> [@untereiner](#):
>
> Hello @mwestphal, is Qt6 support still considered as experimental ?
Yes, but we are moving forward with official support, I hope soon.