mccallum@gnu.ai.mit.edu
)rfm@gnu.org
)Version: 1.38
Date: 2005/02/22 11:22:44
Copyright: (C) 1995, 1996, 1999 Free Software Foundation, Inc.
- Declared in:
- Foundation/NSTimer.h
Standards:
- MacOS-X
- OpenStep
- GNUstep
An NSTimer
provides a way to send a message
at some time in the future, possibly repeating every time
a fixed interval has passed. To use a timer, you can either
create one that will automatically be added to the run
loop in the current thread (using the
-addTimer:forMode:
method), or you can create it without adding it then
add it to an
NSRunLoop
explicitly later.
Create a timer which will fire after ti
seconds and, if f is YES
,
every ti seconds thereafter. On firing,
invocation will be performed.
This
timer will automatically be added to the current run
loop and will fire in the default run loop mode.
Create a timer which will fire after ti
seconds and, if f is YES
,
every ti seconds thereafter. On firing,
the target object will be sent a message
specified by selector and with the
object info as an argument.
This timer will automatically be added to the
current run loop and will fire in the default run
loop mode.
Create a timer which will fire after ti
seconds and, if f is YES
,
every ti seconds thereafter. On firing,
invocation will be performed.
NB.
To make the timer operate, you must add it to a run
loop.
Create a timer wchich will fire after ti
seconds and, if f is YES
,
every ti seconds thereafter. On firing,
the target object will be sent a message
specified by selector and with the
value info as an argument.
NB. To
make the timer operate, you must add it to a run loop.
Fires the timer... either performs an invocation or
ssends a message to a target object, depending on
how the timer was set up.
If the timer is not
set to repeat, it is automatically invalidated.
Returns the date/time at which the timer is next due to fire.
Initialise the receive, a newly allocated
NSTimer object.
The fd
argument specifies an initial fire date... if it
is not supplied (a nil
object)
then the ti argument is used to create a
start date relative to the current time.
The
ti argument specifies the time (in
seconds) between the firing. If it is less than or
equal to 0.0 then a small interval is chosen
automatically.
The f
argument specifies whether the timer will fire
repeatedly or just once.
If the
selector argument is zero, then then
object is an invocation to be used when
the timer fires. otherwise, the object is
sent the message specified by the selector
and with the timer as an argument.
The
fd, object and info
arguments will be retained until the timer is
invalidated.
Marks the timer as invalid, causing its
target/invocation and user info objects
to be released.
Invalidated timers are
automatically removed from the run loop when
it detects them.
Checks to see if the timer has been invalidated.
Change the fire date for the receiver.
NB.
You should NOT use this method for a timer
which has been added to a run loop. The only time
when it is safe to modify the fire date of a timer in
a run loop is for a repeating timer when the timer is
actually in the process of firing.
Returns the interval beteen firings.
Returns the user info which was set for the timer
when it was created, or nil
if none was
set or the timer is invalid.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.