event.h File Reference

Data structures for event handling. More...

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Classes
struct	event_key
	container for a keyboard event More...
struct	event_mouse
	container for a mouse event More...
struct	event_resize
	container for a resize event More...

Enumerations
enum	event_response {   RESPONSE_CANCEL = -4, RESPONSE_ACCEPT = -3, RESPONSE_CLOSE = -2, RESPONSE_HANDLED = -1,   RESPONSE_NONE = 0 }
	response More...
enum	mouse_state { MOUSE_BUTTON_NONE = 0, MOUSE_BUTTON_CLICKED, MOUSE_BUTTON_DRAGGING, MOUSE_BUTTON_RELEASED }
	mouse state More...

Detailed Description

Data structures for event handling.

Enumeration Type Documentation

event_response

enum event_response

response

An event handler is required to respond to an event such as mouse or keyboard. The handler does not have to use the response values. Any value can be used. Consequently, it is up to the caller to intrepret and take action on the value.

The only caveat is the window manager wm_run_modal routine. This routine will evaulate the response and exit the run loop if certain conditions are met.

See also

wm_run_modal

Enumerator
RESPONSE_CANCEL	handler requests to cancel
RESPONSE_ACCEPT	handler accepted (closure)
RESPONSE_CLOSE	handler requests close
RESPONSE_HANDLED	event was handled. no more processing needed.
RESPONSE_NONE	event was ignored/not handled

mouse_state

enum mouse_state

mouse state

Enumerator
MOUSE_BUTTON_NONE	no buttons (mouse moved)
MOUSE_BUTTON_CLICKED	button was clicked
MOUSE_BUTTON_DRAGGING	button is still clicked/dragging
MOUSE_BUTTON_RELEASED	button has been released