How events are handled in mac os x

Hi I am trying to write an application to handle driver asynchronous event.. it should be similar to iwevent in our linux.. can anybody give me an idea as how to start with it.. and what are all the API's used for the same..
Thanks in advance

I suggest you do a google search for "events" on developer.apple.com (use this link) and you should find everything you are looking for on the subject or pointers to it. Berkeley Unix and the Mach kernel are the underlying architectures for OSX and you cannot count on extrapolating linux to OSX.

Similar Messages

How Keyboard & Mouse Events are handled in java?

Hi
How Keyboard & Mouse Events are handled in java?
Kindly brief, how a key typed in the keyboard is sensed and it is entered in JTextField?
or
Pls. give me some links.
Am going to send the events from external device (like keyboard) to OS and from that I need to capture that event in Java Swing?
Pls. drop in a bit. So that it will be helpfull to me.
Thanks in advance,
bee

Actualy am very much aware of using KeyListener and MouseListener. I am in need of internal details,
how typing a key in keyboard is captured by KeyListener? How the event is passed to java swing and and it is fired to keylistener.
Pls. help me.
Thanks
bee

Can anyone tell me how they are handling software distribution for the iPad in an enterprise environment?

Can anyone tell me how they are handling software distribution for the iPad in an enterprise environment?

The new Business Volume Purchase Program is pretty interesting...it can be used to centrally purchase and distribute paid ( not free) items from the AppStore. We are getting setup to use it. You can keep an eye on licenses etc. You can also use a single centralized form of payment.
http://www.apple.com/business/vpp/

Used to use the Mac. How different are menus between Mac and Windows?

I used to use the Mac. How different are the PowerMac menus from those of Windows OS?

Hello,
They're pretty different, after a short while the Mac will be easier, key is to not expect it to work like Windows... I use both.
I think these may answer some of your questions...
http://switchtoamac.com/guides/mac-os-x/mac-os-x-basics/mac-os-x-101-using-a-mac .html
http://www.apple.com/support/macbasics/
Feel free to ask if you have questions after looking at them.

How good are the new Macs for Logic?

I've read some damning articles about some problems with the new macs/os selling now, esp running Logic.
Any ideas on what a fellow traveller should buy?
Is it worth the trouble right now?
Should one wait until the issues are resolved?
What should one do if one needed a working DAW right NOW?
Thanks for any input.
Happy holidays to all.
Peace & love,
BB

What problems especially are you talking about? new macs not working together with Logic pro 9?
I'm using Logic 9 and i'm having my problems with it, but what i've been experiencing is that normally the mac is not the problem, it's logic 9 itself, or maybe the programming.
but if you want to be mobile with your equipment, i'd recommend a macbook pro with quite a bit of ram and a fast hard drive. (7.200 rpm, something like a seagate barracuda).
from my experience apple is not very fast when it comes to fixing bugs in logic but so far 9.0.2 is working pretty stable. another option would be to use cubase, or digital performer as daw?

Weird way how Dates are handled in APEX?

Hi
APEX 2.1.x, 10g XE, Windows XP
I am facing a unique situation, when I am trying to save a date value (with its time component) in APEX. The time portion (hours, minutes and AM/PM) are accepted into separate text variables by the user. My Date column A_Time is a hidden column on the form, whose value is computed via a pl/sql expression, after SUBMIT.
The date part of the A_Time is derived from an already populated another date field on the form.
My PL/SQL computation expression for A_Time is as below
to_date(:P1_EXISTING_DATE||' '||:P1_ARRIVAL_HOUR||':'||:P1_ARRIVAL_MINUTE||:P1_ARRIVAL_AMPM,'DD-MON-YYYY HH:MIPM');
It is storing the date part but completely ignoring the time part (hours,mints am/pm values). Looks like theres trunc happening behind the scenes may be?
Is this a weird way that APEX behaves? I am curious to know if anyone had the similar issue or is it something thats happening at my end?
Thanx
Suma
to_dateTO_CHAR(TO_DATE(:P1_REPORT_DATE||' '||:P1_ARRIVAL_HOUR||':'||:P1_ARRIVAL_MINUTES||:P1_ARRIVAL_AMPM,'DD-MON-YYYY HH:MIPM'),'DD-MON-YYYY HH:MIPM');

Arie,
Thanks so much for responding. Yes A_Time is a DB column and its format mask has been set as DD-MON-YYYY HH:MIPM.
There was a small change in my computation pl/sql for this column
it is actually as below. I had to do redundant to_char and to_date conversions, to get around some ora-errors that apex threw at me:). Funny thing is the below exression is perfectly valid, (when check in toad) with substituted values for :p1_report_date and hour, minutes and am/pm strings. It displays the date with the time portion. But APEX is ignoring the time portion in this case. My guess is a involuntary 'trunc' is taking place behind the scene, before it executes the DML to save the record in the DB.
TO_DATE(TO_CHAR(TO_DATE(:P1_REPORT_DATE||chr(39) ||:P1_ARRIVAL_HOUR||':'||:P1_ARRIVAL_MINUTES||:P1_ARRIVAL_AMPM,'DD-MON-YYYY HH:MIPM'),'DD-MON-YYYY HH:MIPM'),'DD-MON-YYYY HH:MIPM');
Is there a solution for this?
I truly appreciate your help.
Thanx
Suma
Message was edited by:
user573974

How events are managed?

Would like to know if can I import photos as I did with old version of photo, and still keep organized my library based on events.

WWhen you migrate your iPhoto library to Photos, your Events will be converted to Albums and moved to a single folder. You can then move them out and/or organize them into Folders you create.
Albums do not work the same way as Events. After all, it's a totally new application with its own paradigms.
For what it's worth, after migrating to Photos, iPhoto and its Library remain on your drive, so you can always go back to using iPhoto.

Please change how searches are handled

If I am in the Premiere Pro forum, and I search for a term, it should be understood that I only want to search in the Premiere Pro forum. I shouldn't have to do a search, click "more options," scroll down to "Premiere Pro," and then search again. It's an unnecessary waste of time. Could this be changed?
J. D.

Curt,
Earlier on, there was talk of Adobe doing just that. IIRC, those comments were made by a couple of the MOD's in a product forum. Considering the sources, I would speculate that Adobe was planning on working on that aspect, but has either not completed the task, or they have dropped that idea. Those guys are not prone to speculation, so they must have gotten the "word" from higher authorities. Of course, THAT is just speculation on my part...
Good luck to us all,
Hunt

How Connections are handled on WebLogic JMS server

I have a cluster with two managed servers, S1 and S2, running on 8.1SP3. I configured connection factory for both servers: CF1 for S1, CF2 for S2.
          A client, C1, lookups CF1 and create a connection thru it. At this point, I thouht C1 is "connected" to S1. But when I shutdown S2, in about 50% of occasions, C1 will receive lost server exception.
          What's going on here?
          Thanks,
          JD

Good morning,
          A JMS client routes all operations through a single JMS connection host, where the connection host may consists of any one of the servers that host the designated connection factory. Once established, a JMS client's connection host doesn't change. In your case, 50% of clients load-balance to connection host S2 when they establish a connection.
          In most applications, best practice is to target CFs only at those server(s) that thost the client's destination.
          For more information, see the "JMS Performance Guide" white-paper on dev2dev.bea.com.
          Tom, BEA

Sync between MacBookPro and iPhone 3G does not sync properly. Calendars duplicate events but worse is that only contacts from Address book from letter T onwards sync. Any contacts on iPhone which are not on Mac are lost during sync.

Sync between MacBookPro and iPhone 3G does not sync properly. Calendars duplicate events but worse is that only contacts from Address book from letter T onwards sync. Any contacts on iPhone which are not on Mac are lost during sync.
Solutions?

No, I never really found an easy solution. I believe it is an issue with some corruption in the iTunes database on the specific device. In my case, both my iPad and iPhone now show duplicate stream songs if viewed through iTunes on my Mac, but they show different songs. A couple years ago I had a similar issue on my iPhone, and Apple support suggested I back up the phone, completely reset it, and then restore it from the backup. It did work, so I imagine it would probably work for my current issues with the iPhone and iPad. But resetting and restoring an iPad or iPhone always makes me a little nervous that something will get lost. When I did reset/restore the iPhone, I do have to say, the restore process was 100% perfect and I did not lose any data at all even though Apple support said I might. If you try to go that route, I would suggest backing the device up both to a computer through iTunes, and to the iCloud so that you have a double backup.
None of this really resolves the issue with how the iTunes databases are becoming corrupted on the apple devices though, so it is very likely to happen again until they fix it. I have been unable to determine if there were any specific actions or conditions which caused the corruption to happen in the first place.
Might be worth another call to Apple support, or dropping in the local Apple store if you have one near by.

I recently removed an outlook account and now all of my calendar events are missing. The majority of them were added from my iphone 4s. How do I retrieve the events? Backing up with iCloud did not help, as I assumed it would.

I recently removed an outlook account and now all of my calendar events are missing. The majority of them were added from my iphone 4s. How do I retrieve the events? Backing up with iCloud did not help, as I assumed it would.

Outlook is a mail client for PC's (and Macs). It is not a type of account. Do you mean an "Exchange Account"?
If so, then re-add it. The calendar events live on the Exchange Server. The only way to get them back is to re-add the account to the phone. The contents of Exchange and IMAP accounts are not part of the 'backup' as they already exist elsewhere.

How can I handle touch screen events with Swing?

Hi,
I was wondering how i can handle touch screen events. Are there APIs for that or is it just a mouse event?
Thank you in advance.
Tim

I have recently created an application that ran on a touch screen system. I used the normal mouse events attached to the swing components (onClick) and these were translated by the touch screen. Typically I created a calculator type keypad, touched the screen on the text box where I wanted the data to appear and then pressed the keypad buttons to populate the field. No special drivers, just using swing components
Hope that helps
yeah, this is really useful info.. me too trying to build an application for the touch screen... just wondering how other events like focus gained, tree selection events are recognized by touch screen? can we have focus and tree, table selection events etc, as it is in the touch screen as well?? or everything is just mouse event only??

We have a large family, 5 kids and two adults all with iPads, iPhones, Mac Books, Servers.... How can we combine our purchases to use on all our devices. We have two Apple ID's and sometimes buy multiple copies because of how we are limited...

We have a large family, 5 kids and two adults all with iPads, iPhones, Mac Books, Servers.... How can we combine our purchases to use on all our devices. We have two Apple ID's and sometimes buy multiple copies because of how we are limited...

Hello Halfback71,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Frequently asked questions about Apple ID
http://support.apple.com/kb/ht5622
I have multiple Apple IDs. Is there a way for me to merge them into a single Apple ID?
Apple IDs cannot be merged. You should use your preferred Apple ID from now on, but you can still access your purchased items such as music, movies, or software using your other Apple IDs.
If you are wondering how using multiple Apple IDs relate to iCloud, see Apple IDs and iCloud.
Best of luck,
Mario

How does IITTrackCollection handle ItemByName if there are multiple tracks by the same name?

I am writing a program in C# that is trying to check if a track already exists in the iTunes Library before adding it (thus preventing duplicates). The best method I have come up to do this with is to use 'MyPlaylist.ItemByName(SongName)' to retrieve a possible duplicate and then compare the rest of that track's attributes (i.e. the artist and album). However, I have several examples of tracks in my library which have the exact same name, but are in fact completely different and unrelated. How is this handled by the iTunes COM? Or is there a better way to do it?

Hi DSW,
Thanks for your post.
In your query result, please check if these two users have the same Account Name. if they are two different Account Name in result, it indicate there’s two users have the same display name in your AD, please check that two users’ information in
your AD. We suggest change one user’s display name in AD.
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

How to enable Sql Dependency OnDataChange event to handle multiple request at a time

when we work with sql dependency then we work with OnDataChange event and this event notify us regarding data change in table. suppose my application monitor a
test table by using sql dependency. suppose huge number of data is getting insert and updated in
test table very frequently. so i do not know how sql dependency
OnDataChange event can handle this situation because OnDataChange event will fire as many as time data will be change in db table.
here is my snip for onchange event
void OnDataChange(object sender, SqlNotificationEventArgs e)
((SqlDependency)sender).OnChange -= OnDataChange;
BBALogger.Write("PartIndexer Service RegisterNotification called end", BBALogger.MsgType.Info);
if (e.Source == SqlNotificationSource.Timeout)
MailSend(); // notification mail send
BBALogger.Write("PartIndexer Service SqlNotificationSource.Timeout error", BBALogger.MsgType.Error);
Environment.Exit(1);
else if (e.Source != SqlNotificationSource.Data)
MailSend(); // notification mail send
BBALogger.Write("PartIndexer Service SqlNotificationSource.Data", BBALogger.MsgType.Error);
Environment.Exit(1);
else if (e.Type == SqlNotificationType.Change)
StartIndex();
BBALogger.Write("PartIndexer Service Data changed", BBALogger.MsgType.Info);
else
BBALogger.Write(string.Format("Ignored change notification {0}/{1} ({2})", e.Type, e.Info, e.Source), BBALogger.MsgType.Warnings);
RegisterNotification();
please help me to design my OnDataChange event such was if data is changed very frequently in test table then
OnDataChange can handle the situation. OnDataChange event should not be freeze and can log each data change in xml file.
i am just looking for guidance like how to design OnDataChange as a result it could handle and log data when huge number of user will change data in test table frequently. thanks

Hi,
You should be able to delete all nodes selected by an XPath expression... Have a look at this...
http://docs.oracle.com/cd/E28280_01/dev.1111/e15866/ui_ref.htm#i1290003
Cheers,
Vlad

How events are handled in mac os x

Similar Messages

Maybe you are looking for