Touch screens are ubiquitous these days. They are everywhere. While essential in a mobile phone or tablet, you can also get a laptop or desktop computer with one. Refrigerators and cars also commonly have touchscreens. Knowing how to utilize these in your Qt app is also essential.
On mobile phone and tablet platforms, touchscreen support comes from the system and is often built-in. If you are creating your own embedded device, you will most likely need to tell Qt how to use the touchscreen. Qt has support for various touchscreen systems on embedded devices.
