21.6 Input Events

The Emacs command loop reads a sequence of input events that represent keyboard or mouse activity. The events for keyboard activity are characters or symbols; mouse events are always lists. This section describes the representation and meaning of input events in detail.

Function: eventp object

This function returns non-nil if object is an input event or event type.

Note that any symbol might be used as an event or an event type. eventp cannot distinguish whether a symbol is intended by Lisp code to be used as an event. Instead, it distinguishes whether the symbol has actually been used in an event that has been read as input in the current Emacs session. If a symbol has not yet been so used, eventp returns nil.

21.6.1 Keyboard Events		Ordinary characters--keys with symbols on them.
21.6.2 Function Keys		Function keys--keys with names, not symbols.
21.6.3 Mouse Events		Overview of mouse events.
21.6.4 Click Events		Pushing and releasing a mouse button.
21.6.5 Drag Events		Moving the mouse before releasing the button.
21.6.6 Button-Down Events		A button was pushed and not yet released.
21.6.7 Repeat Events		Double and triple click (or drag, or down).
21.6.8 Motion Events		Just moving the mouse, not pushing a button.
21.6.9 Focus Events		Moving the mouse between frames.
21.6.10 Miscellaneous Window System Events		Other events window systems can generate.
21.6.11 Event Examples		Examples of the lists for mouse events.
21.6.12 Classifying Events		Finding the modifier keys in an event symbol. Event types.
21.6.13 Accessing Events		Functions to extract info from events.
21.6.14 Putting Keyboard Events in Strings		Special considerations for putting keyboard character events in a string.