macos-carbon

How can I efficiently catch and handle segmentation faults from C in an OSX Carbon application? Background: I am making an OSX Carbon application. I must call a library function from a third party. Because of threading issues, the function can occasionally crash, usually because it's updating itself from one thread, and it's got some internally stale pointer or handle as I query it from another. The function is a black box to me. I want to be able to call the function but be able to "catch" if it has crashed and supply an alternative return. In Windows, I can use the simple Visual C and Intel

When programmatically moving the mouse cursor, you must set CGSetLocalEventsSuppressionInterval to 0 so the events come in in real-time as opposed to with a 250 millisecond delay. Unfortunately, CGSetLocalEventsSuppressionInterval is marked as deprecated in Snow Leopard. The alternative is CGEventSourceSetLocalEventsSuppressionInterval(CGEventSourceRef source, CFTimeInterval seconds); https://developer.apple.com/library/mac/#documentation/Carbon/Reference/QuartzEventServicesRef/Reference/reference.html#//apple_ref/c/func/CGEventSourceSetLocalEventsSuppressionInterval -(void) mouseMovement:

I have a wxpython script, which creates a wx.App and a frame, hides it and does some processing using hidden frame. I do not want this script's icon to appear in Mac dock but it comes. So how can i hide it, I did not find anything in wxPython so it there some carbon API which I can call? Simplest python script makes icon to appear >>> import wx >>> app = wx.App() I was not able to find a way to hide app icon programmatically, only way seems to be to set LSUIElement=1 in Info.plist, so the apps which need to switch on and off icon depending on user option may have to have two app which share

I'm running into a thorny problem with posting an event from an event tap. I'm tapping for NSSystemDefined at kCGHIDEventTap, then replacing the event with a new one. The problem I'm running in to is that depending on how I post the event, it's being seen only by some applications. My test applications are Opera, Firefox, Quicksilver, and Xcode. Here are the different techniques I've tried within my event tap callback, with results. I'm expecting an action (the "correct response") from each app; "system beep" means the nothing-is-bound-to-that-key system sound. Create a new event, and return

I'm trying to run an example using EnableGUI function . % ghci -framework Carbon Main.hs *Main> enableGUI >> main This is what I get instead of a working program: 2013-01-14 00:21:03.021 ghc[13403:1303] *** Assertion failure in +[NSUndoManager _endTopLevelGroupings], /SourceCache/Foundation/Foundation-945.11/Misc.subproj/NSUndoManager.m:328 2013-01-14 00:21:03.022 ghc[13403:1303] +[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread. 2013-01-14 00:21:03.024 ghc[13403:1303] ( 0 CoreFoundation 0x00007fff8c8ea0a6 __exceptionPreprocess + 198 1 libobjc.A.dylib

Mac OS X stores some files with resource forks. I need to create a file with a resource fork. The trouble is, I need to create this file on the command line. Is anyone aware of how you can create a file with a resource form on the command line in Mac OS X? You can directly access the resource fork of a file using path/to/file/..namedfork/rsrc. First, OS X doesn't really use resource forks... it supports named forks and HFS+ supports the resource forks, but that's mostly for backwards compatibility with OS 9 and old-style Carbon stuff... however, there are command line tools installed with the

I'm currently working on a Backup Application, and I have received a lot of requests for features to be added recently, and the top one of them is adding a checkbox like "Back Up when on Battery Power" like Time Machine has. So, is there a way I can get the status of the Power Adapter (plugged in and plugged in)? I assume that if one had a Desktop Mac, like iMac, etc, I would probably just get Plugged In all the time. Therefore, I need means of detecting if the computer is a portable or not. I assume IOKit would be a library to look at, but I simply could not find anything in the docs, that