mac

How to set up libusb on Mac OS X?

I'd like to try to make a user-space device driver using libusb on Mac, but I'm confused where to start. In the SDK installer (which I got from http://www.ellert.se/twain-sane) it said something about examples which I couldn't find anywhere on my computer. Could anyone please describe how do I set up libusb for development on OS X? May ...

Downloading photos from a (USB-connected) iPhone programatically

I'm wondering if it's possible to access the Camera Roll on the iPhone programatically. Some background: I want to basically run a cron job every night that will download all the (preferably new since last time) photos from my iPhone to a folder on my computer. I'm using a Mac, and I'm not terrifically concerned with interoperability — I...

Playing a stream of video data using QTKit on Mac OS X

I've been playing with QTKit for a couple of days and I'm successfully able to record video data to a file from the camera using a QTCaptureSession and QTCaptureDeviceInput etc. However what I want to do is send the data to another location, either over the network or to a different object within the same app (it doesn't matter) and the...

Turning off Hyper-Threading in 6-core Intel Xeon

We got a 12-core MacPro to do some Monte Carlo calculations. Its Intel Xeon processors have Hyper-Threading (HT) enabled, so in fact there should be 24 processes running in parallel to make them fully utilized. However, our calcs are more efficient to run on 12x100% than 24x50%, so we tried to turn Hyper-Threading off via Processor pane ...

Find (and kill) process locking port 3000 on Mac.

How do I find processes that listens to/uses my tcp ports? I'm on mac os x. (update: 10.5 leopard) I'm having trouble with RubyMine losing control of my rails app and getting detached from the process, locking port 3000. I can't find it using ps -ef... How do I find the stupid thing, kill it, brutally... ? Address already in use - bin...

Create a Custom View with transparent background for a NSStatusItem

Good Morning, I've created a Status Bar Application for Mac: when I click on the icon in menu bar, a NSCustomView appears with some elements. My NSCustomView is too simple, so I want to create something like this: (Snippet.app) http://i.imgur.com/aweP7.png I've searched in Apple Documentation, but I didn't find nothing usefull. Maybe...

Why do I get "EXE_BAD_ACCESS" ?

I have following code, which executes on button press. At first it works as expected but second time onwards application hangs and I get EXE_BAD_ACCESS signal. - (IBAction) comicDetailsPressed:(id)sender { static IssueProperties *props = nil; if (props == nil) { props = [ComicDataParser parseComicForUrl:@"http:/...

Good Learning Method for Objective-C?

Hi I know this must be asked a millions times and can't be easy to answer as there is o definitive method, but any help would be appreciated, thanks. I have been playing around with all sorts of things in Xcode and with Objective-C, however I can't seem to find a good way of learning things in an efficient way. I have bought the book ...

Referencing $HOME or ~ in Info.plist

I need to set an environment variable for my application when it is started from the Finder. It is the location of a directory. The path is relative to $HOME. I am using the Info.plist file to set this environment variable. However, I cannot get it to take $HOME or ~. Can this be done? i.e. I want something like this: MYAPPDIR=~/myappn...

WebKit Crashes trying to play _any_ flash content.

Hi, I have a curious problem with WebKit and WebView. All my other URLs seem to work fine, but when I try to load a site with a lot of flash content, the whole app crashes. The app again functions fine if I customize webview to prevent plugins from running. What's more curious is my dev machine seems to be the exception with all the co...

Display System Keyboard Mac application?

Hi, I need to display the system keyboard if any text entry fields are selected with in my app. I can't seem to find any resources on how to do this. Any tips? Edit: I'm asking this question because I'm making a full screen application and need to show/hide based on user selection. Thanks, Teja ...

How can I make multiple calls to initWithContentsOfURL without it eventually returning the wrong stuff?

I'm doing multiple levels of parsing of web pages where I use information from one page to drill down and grab a "lower" page to parse. When I get to the lowest level of my hierarchy, I no longer hit a new page, I basically hit the same one (with different parameters) and make SQL database entries. If I don't slow things down (by puttin...

Mac: How to get a BSD block device name for a mount path.

Hello, I have a mount point path like "/Volumes/Something" which i already known is a root directory for a mounted local volume. I need to figure out the BSD block device node name for volume mounted at that directory for example "disk1s1". Any advice on how can i dig this up? I also wouldn't mind some additional information like device...

Autosum and other calculations in word table - Mac

Is it possible to use bookmarks in calculations on Mac? I have the following working on word 2007 on PC: "=SUM(ABOVE)" <- and this cell have bookmark called "thesum" then in the cell under I have "=thesum * 0,25" <- this cell have a bookmark called "mva" then in the cell under again, I have "=mva+thesum" This works on PC but when I ...

Preserve &reg; when using Bathisar Tidy on a Mac

I just found Bathisar Tidy to tidy up HTML on a Mac. Wonderful app but I cannot figure one thing out about it. In my pages, where I have &reg; instead of the registered trademark symbol (). I want to preserve the &reg; in the documents. Bathisar Tidy replaces it with the symbol. How do I prevent this? What setting do I change? TI...

Issues with installing Mono 2.6.7 in Mac 10.4.7

I'm installing Mono 2.6.7 on a Mac 10.4.7, and running across few issues. I've solved some of them by updating few libraries via MacPort, but this one is the latest. When I start Mono, it crashes. Any help is appreciated. dyld: lazy symbol binding failed: Symbol not found: _strerror$UNIX2003 Referenced from: /Library/Frameworks/Mono...

Mac Automator/AppleScript: Is there a way to refer to Variables within AppleScript?

I've seen a lot of questions about this on the interwebs but no answers. Is there a way to refer to an Automator 'variable' within AppleScript? I'd like to do some string manipulation as part of a workflow. I've worked around this by using Get Variable and passing them into temporary files, but it's kind of ugly. ...

Trying to compile a working irrlicht application on a mac with plain g++ or Xcode

Ok, here it goes: I managed to compile the .xcodeproj provided with the last zip achive into a .a library file (a static library then). I failed to build a working application that uses irrlicht as a 3D engine with Xcode, I don't really know to do it since I'm sort of unable to use an IDE. I tried to link a simple program with this li...

GCC left shift overflow

The following little program is very awkward using GCC version 4.2.1 (Apple Inc. build 5664) on a Mac. #include <stdio.h> int main(){ int x = 1 << 32; int y = 32; int z = 1 << y; printf("x:%d, z: %d\n", x, z); } The result is x:0, z: 1. Any idea why the values of x and z are different? Thanks a lot. ...

Using Illustrator .ai files in a Cocoa application

I have a client inquiring about developing a Cocoa application that would open Illustrator files. How viable is this in your opinion? How closed is the format? I can't seem to find any useful information on Adobe's site. Thanks in advance! ...