Project Templates for SharePoint 2013 (Microsoft Office Developer Tools for Visual Studio 2012) does not comes pre-packaged as a part of Visual Studio 2012. These templates has to be downloaded and installed separately.
Follow the below URL and click “Download the Tools” link available under Tools Section
(Link for SharePoint 2013 Preview)
The downloaded installer requires Microsoft Web Platform Installer 4.0 to download and install SharePoint 2013 project templates. If Web Platform installer is not already installed, this installer will take care of that part by automatically downloading and installing it.
The below are the items that are installed as a part of this installation package.
1.Windows Client 1.0
2.Windows Exchange Web Services
3.Windows Identity Foundation SDK
4.SharePoint Client Components
5.Workflow Manager Tools for Visual Studio 2012
6.Microsoft Visual Studio 2010 Tools for Office Runtime
7.Microsoft Visual Studio 2010 Tools for Office Runtime Language Pack
8.Microsoft Light Switch HTML Client for Visual Studio 2012 – Preview 2
9.Microsoft Office Developer Tools for Visual Studio 2010 – Preview 2