Qt Installer Framework: How to avoid to install twice same software ?
I created successfully a installer with Qt ITW.
Now I would like to prevent to install twice the same software on the same PC.
How to detect the version of a previous installation in the current setup ?
As advanced feature I would like to have this:
- Prevent installation a the same software if the current setup version is equal or smaller of the previous setup version used to install the software.
- Uninstall previous installation and install the new software, if the setup is greater of the previous setup version.
I forgot these points:
- I use Qt IFW 2.0.1
- I'm working on Windows setup only for the moment