QML import compatible with both Qt5 and Qt6

Likhitha_s

Hi,

I want my QML code to run on both Qt 5.15 and Qt 6.

Qt5: import QtQuick.Controls 2.15

Qt6: import QtQuick.Controls

Is there a way to write a single import statement that works on both, similar to how we do version checks in C++:

#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
// Qt6 code
#else
// Qt5 code
#endif

Thanks

jeremy_k

Including a version number in the import statement is still valid syntax in Qt 6.

Likhitha_s

it says
An example of an unqualified import with version would be

import QtQuick 2.10

In that case, any types defined in QtQuick 2.11 and higher or in any higher major version, like 6.0, would not be available to the file.

jeremy_k

https://doc.qt.io/qt-6/qtqml-syntax-imports.html#module-namespace-imports

it says
An example of an unqualified import with version would be [...]

Is there a question about this section of the documentation? I don't understand the purpose in repeating it without comment.

SGaist

This comment just states that if you use versioned imports you will stay to that exact version.

Since you want your code to work with both Qt 5 and Qt 6, it's in fact exactly what you want.

JKSH

Qt5: import QtQuick.Controls 2.15

Qt6: import QtQuick.Controls

You can use import QtQuick.Controls 2.15 for both Qt 5 and Qt 6.