how to change my gui icon to custom

[JohnLocke]

Using Qt QApplication
need to change my gui icon to custom

p.s please give me 1 reputation to post more then once in 10 minutes, I accumulate questions and post it together
thanks in advance

[jsulm]

@JohnLocke See https://doc.qt.io/qt-6/qguiapplication.html#windowIcon-prop and https://doc.qt.io/qt-6/appicon.html

[JohnLocke]

My second topic is not dupe
https://forum.qt.io/topic/152836/qt-creator-custom-icon

1. Change Icon for Mainwindow
2. change icon for Qt Creator itself

[Christian Ehrlicher]

@JohnLocke said in how to change my gui icon to custom:

change icon for Qt Creator itself

Why will you change the icon of an executable?
You can change the icon of a link to the executable on your desktop but this has nothing to do with Qt. if you want another icon for the executable you have to recompile that executable with your icon.

[JohnLocke]

This post is deleted!

[JohnLocke]

I've installed two version of Qt, but still if open two different versions it open both with one icon and one shorcuts on favorites tab ubuntu (but each windows corresponds for diffrent version 6.6.0/6.4.3 accordingly)

I need to open it in separate windows, in separate favorites tab, with separate icon

How to ammend below?
6.6.0

[Desktop Entry]
Type=Application
Exec="/home/supernova/QtGui/Tools/QtCreator/bin/qtcreator" %F
Name=Qt Creator
GenericName=The IDE of choice for Qt development.
Icon=QtProject-qtcreator
StartupWMClass=qtcreator
Terminal=false
Categories=Development;IDE;Qt;
MimeType=text/x-c++src;text/x-c++hdr;text/x-xsrc;application/x-designer;application/vnd.qt.qmakeprofile;application/vnd.qt.xml.resource;text/x-qml;text/x-qt.qml;text/x-qt.qbs;

6.4.3

[Desktop Entry]
Type=Application
Exec=qtcreator %F
Name=Qt Creator
GenericName=C++ IDE for developing Qt applications
X-KDE-StartupNotify=true
Icon=/home/supernova/server/icons/gcg.png
StartupWMClass=qtcreator
Terminal=false
Categories=Development;IDE;Qt;
MimeType= text/x-c++src;text/x-c++hdr;text/x-xsrc;application/x-designer;application/vnd.qt.qmakeprofile;application/vnd.qt.xml.resource;

[Pl45m4]

@JohnLocke said in how to change my gui icon to custom:

I've installed two version of Qt, but still if open two different versions it open both with one icon and one shorcuts on favorites tab ubuntu

The Qt version has nothing to do with whether you have QtCreator installed twice or not. You can use the same QtCreator with both Qt versions.