---
name: "events"
section: "3"
platform: "linux"
package: "libcoin80-doc"
version: "3.1.4~abc9f50-7"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/events/3"
---

# events(3)

## NAME

Event Classes -

### Classes

class **SoButtonEvent**\
 *The* **SoButtonEvent** *class is the base class for all button events.*

The event classes which results from the user pushing buttons on some device (keyboard, mouse or spaceball) all inherit this class. The **SoButtonEvent** class contains methods for setting and getting the state of the button(s). **"** class **SoEvent**\
 *The* **SoEvent** *class is the base class for all Coin events.*

**Coin contains its own set of event classes, independent of the underlying window system.** " class **SoKeyboardEvent**\
 *The* **SoKeyboardEvent** *class contains information about keyboard interaction.*

When the user presses any keys on the keyboard, these will be translated from a system specific event into a Coin event and sent to the scenegraph by using instances of this class. **"** class **SoLocation2Event**\
 *The* **SoLocation2Event** *class contains information about 2D movement events.*

**Location2 events are generated by devices capable of 2D, e.g. pointer devices -- typically computer mice. Instances of this class contains information about the position of the pointer on the render area.** " class **SoMotion3Event**\
 *The* **SoMotion3Event** *class contains information about 3D movement events.*

Motion3 events are generated by devices capable of '3D motion', for instance spaceballs. Instances of this class contains information about these devices' translations and rotations in all 3 dimensions. **"** class **SoMouseButtonEvent**\
 *The* **SoMouseButtonEvent** *class contains information about mousebutton interaction.*

**When the user presses any buttons on the mouse, these will be translated from a system specific event into a Coin event and sent to the scenegraph by using instances of this class.** " class **SoSpaceballButtonEvent**\
 *The* **SoSpaceballButtonEvent** *class contains information about spaceball button interaction.*

When the user presses any buttons on a spaceball device, these will be translated from a system specific event into a Coin event and sent to the scenegraph by using instances of this class. **"**

## Detailed Description

**These classes are te event types you can send to a scene graph through the SoHandleEventAction. They are a pretty direct mapping from the various system event types you will have on all the host architectures.**

## Author

**Generated automatically by Doxygen for Coin from the source code.**