I've got Qt Installer Framework QtIFW2.0.1 installed and I had a look at the shipped examples.
When I had a closer look at the example translations I learned how I can translate the content of a custom ui file. But what I neither saw in the example nor in the documentation is how I can translate text that is located in the component package.xml file.
In the above mentioned example this looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<Package>
<DisplayName>The root component</DisplayName>
<Description>This component contains a license and translations to German.</Description>
<Version>0.5.0-1</Version>
<ReleaseDate>2015-01-29</ReleaseDate>
<Licenses>
<License name="Beer Public License Agreement" file="license.txt" />
</Licenses>
<Default>true</Default>
<Script>installscript.qs</Script>
<UserInterfaces>
<UserInterface>page.ui</UserInterface>
</UserInterfaces>
<Translations>
<Translation>de.qm</Translation>
<Translation>pl.qm</Translation>
</Translations>
</Package>
So, long story short: How can I translate this particular text-line:<Description>...</Description>
?
This is actually pretty simple:
<Description>Miam-Player is the main program. It is required and cannot be unselected.</Description>
<Description xml:lang="fr_fr">Miam-Player est le programme principal. Il est requis et ne peut être désélectionné.</Description>
I don't think you need something else.
Maybe only in IFW 3.0, but in my case it worked.
To specify localization of "DisplayName", you need to use 5-character name of language, and for "Desctiption" you need to use language name of 2 letters
<DisplayName>The root component</DisplayName>
<DisplayName xml:lang="ru_RU">Корневой компонент</DisplayName>
<Description>Miam-Player is the main program. It is required and cannot be unselected.</Description>
<Description xml:lang="ru">Miam-Player это основная программа. Она необходима и не может быть отменена</Description>
来源：https://stackoverflow.com/questions/33349783/qt-installer-framework-translate-component-description