I would like to develop plugins for an RCP Applicaction. Now, they provide a .target file for development. I tried to read on several Eclipse pages but I could not find out how to use that file. Do I have to load it somewhere? Do I have to add it at a specific location? I'm sure, I missed something... Please give me a hint.
Use the target definition editor to open the target file.
You will need to have the Plug-in development tools (PDE) installed to develop plug-ins for RCP applications. PDE can be installed into an existing IDE from the projects download page.
Or you can download an Eclipse package that contains PDE. This page gives an overview which package contains what. However, I recommend to choose the Eclipse for RCP and RAP develoipers
If you have PDE installed and the target file is located in the workspace, it is the default editor (i.e. you can simply doiuble click the respective entry in the package explorer).
Use the Set as target platform in the top right corner of the target editor to make it the current target platform.
The current target platform constitutes the plug-ins which your workspace will be built and run against. It describes the platform that you are developing for.
Once a target platform is known to the IDE it can also the changed through the Plug-in Development > Target Platform preference page.
There is also an option to show the name of the current target platform in the status bar on the Plug-in Development preference page.