## Static Methods Relevant to DXMEvent Objects

###

andEvent

Statics Class

Creates an event that occurs only when the two given events happen simultaneously. The event time for the new event is when both of the given events occur.

public static DXMEvent andEvent(
DXMEvent first,
DXMEvent second
);

##### Parameters

first and second
  The DXMEvent objects.

##### Return Values

Returns a DXMEvent object. When the event occurs, it produces a PairObject. The first member is the event data returned by the first event. The second member is the event data returned by the second event.

###

keyDown

Statics Class

Returns an DXMEvent when a specific key is pressed. This is a state-transition event.

public static DXMEvent keyDown(
int keyCode
);

##### Parameters

keyCode
  Can either be quoted characters such as 'a' or specific Java keycode constants.

##### Return Values

Returns the DXMEvent object. This event produces no data.

##### Remarks

The following table lists the hexadecimal values for all the special keycodes. The pattern for each key is 0x10000 plus the Win32 scan code.

Key | KeyCode
PGUP | 10021
PGDN | 10022
END | 10023
HOME | 10024
LEFT | 10025
UP | 10026
RIGHT | 10027
DOWN | 10028
INSERT | 1002D
DELETE | 1002E
NUMPAD0 | 10060
NUMPAD1 | 10061
NUMPAD2 | 10062
NUMPAD3 | 10063
NUMPAD4 | 10064
NUMPAD5 | 10065
NUMPAD6 | 10066
NUMPAD7 | 10067
NUMPAD8 | 10068
NUMPAD9 | 10069
MULTIPLY | 1006A
ADD | 1006B
SEPARATOR | 1006C
SUBTRACT | 1006D
DECIMAL | 1006E
DIVIDE | 1006F
F1 | 10070
F2 | 10071
F3 | 10072
F4 | 10073
F5 | 10074
F6 | 10075
F7 | 10076
F8 | 10077
F9 | 10078
F10 | 10079
F11 | 1007A
F12 | 1007B
F13 | 1007C
F14 | 1007D
F15 | 1007E
F16 | 1007F
F17 | 10080
F18 | 10081
F19 | 10082
F20 | 10083
F21 | 10084
F22 | 10085
F23 | 10086
F24 | 10087

###

keyUp

Statics Class

Returns an DXMEvent when a specific key is released. This is a state-transition event.

public static DXMEvent keyUp(
int keyCode
);

##### Parameters

keyCode
  Can either be quoted characters such as 'a' or specific Java keycode constants.

##### Return Values

Returns the DXMEvent object. This event produces no data.

##### Remarks

For a list of special keycodes, see keyDown.

###

notEvent

Statics Class

Creates an event that occurs when the given event does not occur. This is useful for creating combined events that occur only if the given event is not also occurring, for example, an event that occurs when the left mouse button is down and the right button is not down.

public static DXMEvent notEvent(
DXMEvent ev
);

##### Parameters

ev
  The DXMEvent object.

##### Return Values

Returns the DXMEvent object. This event produces no data.

###

orEvent

Statics Class

Creates an event that occurs when either one of the given events occur. The event time for the new event is when either the first or second given event has occurred.

public static DXMEvent orEvent(
DXMEvent first,
DXMEvent second
);

##### Parameters

first and second
  The DXMEvent objects.

##### Return Values

Returns a DXMEvent object. Its data is the event data of either the first or second event.

###

predicate

Statics Class

Creates an event that occurs when the value of the given boolean behavior changes from false to true. Note that, because of implementation dependencies and the potential for aliasing, the system cannot always detect when a boolean behavior becomes true. For example, the expression: predicate(eq(sin(localTime), toBvr(0))) may never occur unless the system happens to sample it when sin(localTime)is exactly zero. Therefore, it is advisable to use inequality comparisons (for example, gte) rather than equality comparisons (for example, eq). Alternatively, the timer constructor may be a better choice for these situations.

public static DXMEvent predicate(
BooleanBvr bool
);

##### Parameters

bool
  The BooleanBvr object.

##### Return Values

Returns the DXMEvent. This event produces no data.

###

thenEvent

Statics Class

Creates an event if e2 occurs after e1. The event time of the new event is the time of the second event.

public static DXMEvent thenEvent(
DXMEvent e1,
DXMEvent e2
);

##### Parameters

e1
  The first event, that, when it occurs, triggers the second event.
e2
  The second event, caused by the occurrence of the first event.

##### Return Values

Returns the DXMEvent object. Its event data is the time the second event fired and a PairObject containing the event data for both events.

###

timer

Statics Class

Creates an event that occurs when the specified time has elapsed.

public static DXMEvent timer(
NumberBvr timeout
);

##### Parameters

timeout
  The NumberBvr object. This parameter can also be of type double.

##### Return Values

Returns the DXMEvent object. This event produces no data.

###

unregisterCallback

Statics Class

Used to unregister the callback.

public static void unregisterCallback(
Object object
);

##### Parameters

object
  The object used to unregister the callback.

##### See Also

registerCallback

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