Embed TCanvas in Qt

ROOT
1

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ROOT Version: 6.28
Platform: windows 10
Compiler: visual C++

I can’t embed TCanvas in Qt via " How to Embed a TCanvas in External Applications? - Howto - ROOT Forum (cern.ch)".
I do not know how to do “int wid = gVirtualX->AddWindow((ULong_t)getid(), getWidth(), getHeight());” and so on.
I hope send me a sample tutorial, so that I can embed TCanvas in Qt easily.

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Hi @songshusen,

maybe this helps:

Note that TCanvas will be replaced by the new web-based RCanvas to be more platform independent.

Does this tutorial answer your questions?

3

Hi,

Old method of embeding ROOT canvas in QWindow no longer working on Mac and Windows platforms.
It is still possible to use it on X11-based platforms like Linux.

The only portable solution for now - using new TWebCanvas. tutorials/webgui/qtweb shows how it can be done.

Regards,
Sergey

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QWebEngineView, I can’t find it to include.
it is the module in Qt?

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You need to install qt WebEngine developer components.

For me (OpenSUSE) packet called libqt5-qtwebengine-devel

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auto where = ROOT::RWebDisplayArgs::GetQt5EmbedQualifier(this, “noopenui”, QT_VERSION);
if Qt6 could do it?

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Code was originally developed with Qt5, but now also works with Qt6 components.
That’s why QT_VERSION has to be provided.

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auto where = ROOT::RWebDisplayArgs::GetQt5EmbedQualifier(this, “noopenui”, QT_VERSION);
with visual c++, No member named ‘RWebDisplayArgs’ in namespace ‘ROOT’.
I have include “ROOT/RWebDisplayArgs.hxx”.
where may be not right?

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Did you compile ROOT with webgui and qt5web/qt6web support?

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See readme file in qtweb directory:

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I can not open //github.com/root-project/root/tree/master/tutorials/webgui/qtweb.
Could you share it to me in anther way?

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Strange, I just copied link to github repository.

Seems to be forum brakes links on github

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