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  • Cocoa Application with Menubar but no Dock Icon / switch menu

    - by Frank R.
    Hi, This is yet one more of those "how to switch from running with a dock icon to running without one" questions with a twist.. I don't want the dock icon but I do want a menu bar when the application is at the front. Is that possible? Running an application with LSUIElement set to 1 in the plist will launch the application without a dock icon, not showing up in the command-tab switch list and without a menu. You can switch from that mode to the "normal" mode with all three switched on via SetSystemModeUI from 10.2 onwards and via NSApplication setApplicationActivationPolicy since 10.6, but crucially there is no way back to the previous mode (go figure). So one way around this would be to launch with LSUIElement = 1 and then activate the menu bar when the application gets the focus and deactivate it on the application losing the focus.. alas I can't find a way of doing that. Can anybody help? Best regards, Frank

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  • Export Core Data Entity as text files in Cocoa

    - by happyCoding25
    Hello, I have an entity in core data that has 2 Attributes. One that is a string called "name", and another one that is a string called "message". I need a method to create text files for all the attributes that the user has added. I wan't the files names to be the name attribute and the contents to be the message attribute. If anyone knows how to do this any help would be great. Thanks for any help

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  • Cocoa NSStream works with SSL, with socks5, but not at the same time

    - by Evan D
    Upon connecting (to an FTP, at first without SSL) I run: NSArray *objects = [NSArray arrayWithObjects:@"proxy.ip", [NSNumber numberWithInt:1080], NSStreamSOCKSProxyVersion5, @"user", @"pass", nil]; NSArray *keys = [NSArray arrayWithObjects:NSStreamSOCKSProxyHostKey, NSStreamSOCKSProxyPortKey, NSStreamSOCKSProxyVersionKey, NSStreamSOCKSProxyUserKey, NSStreamSOCKSProxyPasswordKey, nil]; NSDictionary *proxyDictionary = [NSDictionary dictionaryWithObjects:objects forKeys:keys]; [iStream retain]; [iStream setDelegate:self]; [iStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [iStream setProperty:proxyDictionary forKey:NSStreamSOCKSProxyConfigurationKey]; [iStream open]; same for iStream. This allows me to connect succesfully through a socks5 proxy. If I continue without setProperty:proxyDictionary... (socks5 disabled) I would tell the server to switch to SSL, and then successfully apply these settings to the in/output streams, thus giving me a SSL connection: NSMutableDictionary *settings = [NSMutableDictionary dictionaryWithCapacity:1]; [settings setObject:(NSString *)NSStreamSocketSecurityLevelTLSv1 forKey:(NSString *)kCFStreamSSLLevel]; // to allow selfsigned certificates: [settings setObject:[NSNumber numberWithBool:YES] forKey:(NSString *)kCFStreamSSLAllowsAnyRoot]; [iStream retain]; [iStream setDelegate:self]; [iStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; CFReadStreamSetProperty((CFReadStreamRef)iStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings); [iStream setProperty:NSStreamSocketSecurityLevelTLSv1 forKey:NSStreamSocketSecurityLevelKey]; same for oStream. All of which works fine if I disable socks5. If I turn it on (line 7 in the first snippit) I lose contact when applying the SSL settings. If I had to guess, I'd think it's losing some properties when applying (ssl) "settings"? Please help :) Evan

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  • MVC with cocoa/objective-c

    - by Leonardo
    Hi all, I have a strong j2ee background, and I am trying to move to objective-c for some desktop/iphone programming. I used many java web frameworks with mvc in mind, spring and struts ecc... so I am used to have servlet or controller which pass attributes to jsp pages, which is the view. In jsp pages with jstl you can call this attribute and render to video. In this way controller and view are (in theory) clearly separated. With xcode, I can easily recognize the controller and the view built with IBuilder. All the tutorial I found, shown the controller which go and change directly labels or text fields. So my two questions: seems to me that there's no separation between the two (controller and view), where I am wrong in that ? is there a way for a controller to pack all objects in a kind of context in a j2ee way and have the view read that context ? thanks Leonardo

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  • Generate a random alphanumeric string in cocoa

    - by Ward
    Hey there, I know this can't be that hard. I've searched, but I can't seem to find a simple solution. I want to call a method, pass it the length and have it generate a random alphanumeric string. Any ideas? Are there any utility libraries out there that may have a bunch of these types of functions? Thanks, Howie

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  • Cocoa touch - UIView in Interface Builder

    - by teepusink
    Hi, I've created a UIView (of type ColumnView) in Interface Builder. Is it possible to add that UIView multiple times to my window? I'm trying to create a UIView template that I can add to my window in a couple of places but can't figure out how to do that. I tried referencing the outlet of that UIView to 2 different IBOutlets but when I add the 2 outlets to my window, it's just treated as a single UIView. Need the UIView to be duplicated. Thanks, Tee

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  • Cocoa - Enumerate mutable array, removing objects

    - by Ward
    Hey there, I have a mutable array that contains mutable dictionaries with strings for the keys latitude, longitude and id. Some of the latitude and longitude values are the same and I want to remove the duplicates from the array so I only have one object per location. I can enumerate my array and using a second enumeration review each object to find objects that have different ids, but the same latitude and longitude, but if I try to remove the object, I'm muting the array during enumeration. Is there any way to remove objects from an array while enumerating so I only enumerate the current set of objects as the array is updated? Hope this question makes sense. Thanks, Howie

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  • cocoa Expected specifier-qualifier-list before struct

    - by Circle
    I read the other posted solutions to using structs and resolving the "Expected specifier-qualifier-list before struct" related errors, but those aren't working. Is it different in Objective C? Do I need to declare my struct somewhere else in the class? It gives me the error on the line where I declare the typedef. Here is how it looks right now: @interface ClassA : NSObject { NSString *name; typedef struct _point { uint32_t x; uint64_t y; } Point; Point a; } @end

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  • Cocoa: AVAudioRecorder Fails to Record

    - by kumaryr
    AVAudioSession *audioSession = [AVAudioSession sharedInstance]; NSError *err = nil; [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:&err]; if(err){ NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]); return; } [audioSession setActive:YES error:&err]; err = nil; if(err){ NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]); return; } NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init]; [recordSetting setValue:[NSNumber numberWithInt: kAudioFormatAppleIMA4] forKey:AVFormatIDKey]; [recordSetting setValue:[NSNumber numberWithFloat:40000.0] forKey:AVSampleRateKey]; [recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey]; [recordSetting setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey]; [recordSetting setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey]; [recordSetting setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey]; // Create a new dated file NSDate *now = [NSDate dateWithTimeIntervalSinceNow:0]; NSString *caldate = [now description]; NSString *recorderFilePath = [[NSString stringWithFormat:@"%@/%@.caf", DOCUMENTS_FOLDER, caldate] retain]; NSLog(recorderFilePath); url = [NSURL fileURLWithPath:recorderFilePath]; err = nil; recorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSetting error:&err]; if(!recorder){ NSLog(@"recorder: %@ %d %@", [err domain], [err code], [[err userInfo] description]); UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Warning" message: [err localizedDescription] delegate: nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release]; return; } //prepare to record [recorder setDelegate:self]; [recorder prepareToRecord]; recorder.meteringEnabled = YES; BOOL audioHWAvailable = audioSession.inputIsAvailable; if (! audioHWAvailable) { UIAlertView *cantRecordAlert = [[UIAlertView alloc] initWithTitle: @"Warning" message: @"Audio input hardware not available" delegate: nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [cantRecordAlert show]; [cantRecordAlert release]; return; } // [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector( updateTimerDisplay) userInfo:nil repeats:YES]; // [recorder recordForDuration:(NSTimeInterval)10 ]; // [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector( updateTimerDisplay) userInfo:nil repeats:YES];

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  • Cocoa Virtual Keystrokes Pain

    - by bhargav
    I'm writing an application to respond on a hotkey by copying highlighted text into NSPasteboard's generalPasteboard. After looking around here for a solution for sending virtual keystrokes, I found this: http://stackoverflow.com/questions/1505933/how-to-send-a-cmd-c-keystroke-to-the-active-application-in-objective-c-or-tell I tried the applescript suggested with NSAppleScript: NSLog(@"Hotkey Pressed"); NSPasteboard *pasteboard = [NSPasteboard generalPasteboard]; NSAppleScript *playScript; playScript = [[NSAppleScript alloc] initWithSource:@"tell application \"System Events\" to keystroke \"c\" using command down"]; if([playScript isCompiled] == NO){ [playScript compileAndReturnError:nil]; } id exerror = [playScript executeAndReturnError:nil]; if(exerror == nil){ NSLog(@"Script Failed"); } It works, but only on the first time I hit the hotkey. Each subsequent hit will not to grab the highlighted text. The generalPasteboard still contains the same contents as before the script is run again. Clearing the generalPasteboard before I run the code is no use, because then the code fails when attempting to read the pasteboard contents. So I tried the next suggested solution: CFRelease(CGEventCreate(NULL)); CGEventRef event1, event2, event3, event4; event1 = CGEventCreateKeyboardEvent (NULL, (CGKeyCode)50, true); event2 = CGEventCreateKeyboardEvent (NULL, (CGKeyCode)8, true); event3 = CGEventCreateKeyboardEvent (NULL, (CGKeyCode)8, false); event4 = CGEventCreateKeyboardEvent (NULL, (CGKeyCode)50, false); CGEventPost(kCGHIDEventTap, event1); CGEventPost(kCGHIDEventTap, event2); CGEventPost(kCGHIDEventTap, event3); CGEventPost(kCGHIDEventTap, event4); The above should send the keystrokes Command + c, but all I get is a beep, and the pasteboard contents are unchanged. I'm at wits end - can anyone enlighten me as to what I'm missing or point me out to what I'm overlooking for something so simple?

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  • [Cocoa] NSTableView bound to NSArrayController

    - by ndg
    Within Interface Builder I've got an NSTableView with two columns bound to a vanilla NSArrayController. The NSArrayController has its Content Array bound to an NSMutableArray in my application delegate. I've used further bindings to setup the addition and removal of rows via bindings (magic!). The issue I'm running into now is that I'd like to grab the currently selected NSTableView row and use its index to look-up the object stored in my NSArrayControllers associated array. The problem I'm running into is trying to access the NSTableView. Within my application delegate, using the following code will cause my application to crash: NSLog(@"%@", [timersTableView selectedRow]); Similarly, this also causes my application to crash: NSLog(@"%@", [timersController selectionIndex]); Given the simplicity of the code above, I must be doing something fundamentally wrong?

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  • Microphone audio streaming from Cocoa mac app to iPhone

    - by Benzamin
    Hi devs, I'm trying to build a microphone audio streamer to iPhone. The server software will be a mac desktop app and the client will be iPhone, and they are connected via tcp port. I've successfully connected the mac app and iPhone, and tried to send a fixed test.m4a audio file first. But at the iPhone i grabbed the data well, when tried to play it i used AVAudioPlayer and its returning OSStatus error. I played around with the audio queue service but its very tricky and i only got some example for fixed length audio playing like http://cocoawithlove.com/2009/06/revisiting-old-post-streaming-and.html Now i need help on two things, how can i continuously grab audio data from Mac desktop microphone? And then after grabbing the data how i can play this unfixed length audio data in the iPhone. What exactly i need to do? Please please help me on this......

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  • cocoa - making a UIImageView class act like a UIButton

    - by Mike
    For some reason that will take too much time to explain, I have to create a UIImageView based class that has some properties of a button. Imagine a class like the UISwitch (no I cannot base my class on the UISwitch) with two states, on and off. WHen the user selects one state, it runs a method like a button that was clicked and the method receives the sender id. I have already the class more or less working. The class is based on UIImageView. I am having difficulties to understand the following. WHen I create a new button I have a line that is like [myButton addTarget:self action:NSSelectorFromString(myMethod) forControlEvents:UIControlEventTouchUpInside]; This line defines a target and an action to run when the button is triggered. I my case I would need something like [myObject addTarget:self action:myMethod ifState:1] //or another thing ifState:2 I have no idea what kind of code I should put on the class to make this work. Remember that as a button the class should send the "sender" information to identify the object which triggered the action... Can you guys, transcendental gurus help? thanks for any help!

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  • NSStatusItem (cocoa) location on screen

    - by Craig
    I am trying to get the on screen location of an NSStatusItem so that I can perform a click on that area via code like below. I am doing this so that my users can press a hotkey to see the menu. event = CGEventCreateMouseEvent(NULL, kCGEventLeftMouseDown, newLocation, kCGMouseButtonLeft); CGEventPost(kCGHIDEventTap, event); CFRelease(event); Does anyone know of a way to get the location?, I have been trying ideas and searching for days and have found several ideas but none of them seem to work in leopard/snow leopard The NSStatusItem is using an NSMenu not a custom view.

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  • Cocoa QuickLook initiated by NSTableView Cell

    - by Tristan Seifert
    I have an NSTableView that contains 2 different Columns - one is an NSImageCell that shows a file icon, and the second is a custom subclass of NSTextFieldCell that contains a quick look button on the right of the text. When I click the Quick Look button, the following code is invoked: [[QLPreviewPanel sharedPreviewPanel] makeKeyAndOrderFront:nil]; This does it's job and shows the blank Quick Look panel saying "No Items Selected." After I did a bit of research on the internet, I implemented a custom NSTableView subclass to be the Delegate and Data Source for the Quick Look panel. I get the notification that Quick Look asks if I want to be the delegate, and I respond with return YES. Even though I implement all methods in both QLPreviewPanelDataSource and QLPreviewPanelDelegate, at runtime I get this error on the console: 2010-12-24 15:32:17.235 BackMeUp[4763:80f] clicked: ~/Desktop/HUDTape.mov 2010-12-24 15:32:17.489 BackMeUp[4763:80f] [QL] QLError(): -[QLPreviewPanel setDelegate:] called while the panel has no controller - Fix this or this will raise soon. See comments in QLPreviewPanel.h for -acceptsPreviewPanelControl:/-beginPreviewPanelControl:/-endPreviewPanelControl:. 2010-12-24 15:32:17.490 BackMeUp[4763:80f] [QL] QLError(): -[QLPreviewPanel setDataSource:] called while the panel has no controller - Fix this or this will raise soon. See comments in QLPreviewPanel.h for -acceptsPreviewPanelControl:/-beginPreviewPanelControl:/-endPreviewPanelControl:. 2010-12-24 15:32:17.491 BackMeUp[4763:80f] We can now receive QL Events. 2010-12-24 15:32:18.291 BackMeUp[4763:80f] -[NSPathStore2 stringValue]: unrecognized selector sent to instance 0x5ecb10 2010-12-24 15:32:18.292 BackMeUp[4763:80f] -[NSPathStore2 stringValue]: unrecognized selector sent to instance 0x5ecb10 And the Quick Look panel does not show up, which I find rather odd. The first line above is just that I know the cell has been clicked. Anyways, here is the .m file of the custom table view subclass: // // BackupListTableView.m // BackMeUp // // Created by Tristan Seifert on 12/24/10. // Copyright 2010 24/7 Server. All rights reserved. // #import "BackupListTableView.h" @implementation BackupListTableView - (void) awakeFromNib { } // Quick Look Delegates - (BOOL)acceptsPreviewPanelControl:(QLPreviewPanel *)panel; { [QLPreviewPanel sharedPreviewPanel].delegate = self; [QLPreviewPanel sharedPreviewPanel].dataSource = self; NSLog(@"We can now receive QL Events."); return YES; } - (void)beginPreviewPanelControl:(QLPreviewPanel *)panel { // This document is now responsible of the preview panel // It is allowed to set the delegate, data source and refresh panel. [QLPreviewPanel sharedPreviewPanel].delegate = self; [QLPreviewPanel sharedPreviewPanel].dataSource = self; } - (void)endPreviewPanelControl:(QLPreviewPanel *)panel { // This document loses its responsisibility on the preview panel // Until the next call to -beginPreviewPanelControl: it must not // change the panel's delegate, data source or refresh it. return; } // Quick Look panel data source - (NSInteger)numberOfPreviewItemsInPreviewPanel:(QLPreviewPanel *)panel { return 1; } - (id <QLPreviewItem>)previewPanel:(QLPreviewPanel *)panel previewItemAtIndex:(NSInteger)index { int selectedRow = [self selectedRow]; return [NSURL URLWithString:[[[self dataSource] tableView:self objectValueForTableColumn:fileColumn row:selectedRow] stringValue]]; } // Quick Look panel delegate - (BOOL)previewPanel:(QLPreviewPanel *)panel handleEvent:(NSEvent *)event { // redirect all key down events to the table view return NO; } // This delegate method provides the rect on screen from which the panel will zoom. - (NSRect)previewPanel:(QLPreviewPanel *)panel sourceFrameOnScreenForPreviewItem:(id <QLPreviewItem>)item { NSRect iconRect = [self rectOfColumn:1]; /* // check that the icon rect is visible on screen NSRect visibleRect = [self visibleRect]; // convert icon rect to screen coordinates iconRect = [self convertRectToBase:iconRect]; iconRect.origin = [[self window] convertBaseToScreen:iconRect.origin]; */ return iconRect; } // This delegate method provides a transition image between the table view and the preview panel - (id)previewPanel:(QLPreviewPanel *)panel transitionImageForPreviewItem:(id <QLPreviewItem>)item contentRect:(NSRect *)contentRect { int selectedRow = [self selectedRow]; NSImage *fileIcon = [[NSWorkspace sharedWorkspace] iconForFile:[[[self dataSource] tableView:self objectValueForTableColumn:fileColumn row:selectedRow] stringValue]]; return fileIcon; } @end Thanks for any help.

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  • Cocoa Touch UITableView Alphabetical '#' Match All Unmatched

    - by Kevin Sylvestre
    I have a UITableView containing names that I would like to group (and sort) by the first letter (similar to the Address Book application). I am currently able to match any section ('A'-'Z') using: // Sections is an array of strings "{search}" and "A" to "Z" and "#". NSString *pattern = [self.sections objectAtIndex:section]; NSPredicate *predicate = nil; // Ignore search pattern. if ([pattern isEqualToString:@"{search}"]) return nil; // Non-Alpha and Non-Diacritic-Alpha (?). if ([pattern isEqualToString:@"#"]); // Default case (use case and diacritic insensitivity). if (!predicate) predicate = [NSPredicate predicateWithFormat:@"name beginswith[cd] %@", pattern]; // Return filtered results. return [self.friends filteredArrayUsingPredicate:predicate]; However, matching for the '#' eludes me. I tried constructing a REGEX match using: [NSPredicate predicateWithFormat:@"name matches '[^a-zA-Z].*'"]; But this fails for diacritic-alpha (duplicate rows appear). Any ideas would be greatly appreciated! Thanks.

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  • Getting output of a shell script in Cocoa

    - by Tristan Seifert
    Is there a way that lets me run a shell script, and display the output in an NSTextView? I do not want any input from the user to the shell script at all, since is is just called to compile a buch of files. The shell script part works fine so far, but I just can't figure out how to run it and show the output in an NSTextView. I know a shell script can be run using system() and NSTask, but how do I get it's output into an NSTextView?

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  • Cocoa Read NSInputStream from FTP connection

    - by Chuck
    Hi, I (apparently) manage to make a ftp connection, but fail to read anything from it, and with good cause: I don't reach the reading until the connection has timed out. Here's my code: NSHost *host = [NSHost hostWithAddress:@"127.0.0.1"]; [NSStream getStreamsToHost:host port:3333 inputStream:&iStream outputStream:&oStream]; NSMutableDictionary *settings = [NSMutableDictionary dictionaryWithCapacity:1]; [settings setObject:(NSString *)NSStreamSocketSecurityLevelTLSv1 forKey:(NSString *)kCFStreamSSLLevel]; [settings setObject:[NSNumber numberWithBool:YES] forKey:(NSString *)kCFStreamSSLAllowsAnyRoot]; [iStream retain]; [iStream setDelegate:self]; [iStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; CFReadStreamSetProperty((CFReadStreamRef)iStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings);forKey:NSStreamSocketSecurityLevelKey]; [iStream open]; [oStream retain]; [oStream setDelegate:self]; [oStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; CFWriteStreamSetProperty((CFWriteStreamRef)oStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings); forKey:NSStreamSocketSecurityLevelKey]; [oStream open]; NSMutableData *returnMessage = [NSMutableData dataWithLength: 300]; [iStream read: [returnMessage mutableBytes] maxLength: 300]; NSString *readData = [[NSString alloc] initWithBytes: [returnMessage bytes] length: 300 encoding: NSUTF8StringEncoding]; NSRunAlertPanel(@"response", readData, nil, nil, nil); I have not sent a request to the FTP to switch to ssl yet. Any help is greatly appreciated as I find Xcode quite horrible for debugging (no exception or error msg on failed steps what so ever). Chuck

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  • What is the correct pronunciation of Cocoa?

    - by Nathan S.
    The question says it all: is it coke-ah, co-co, co-co-ah or something else entirely? I've read articles claiming different pronunciations, although there seems to be some consensus towards co-co (e.g. http://www.cocoacrumbs.com/blog/?p=5) Any definitive references that will answer the question for sure?

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  • Cocoa Touch & Sql Server

    - by kim3er
    Is it possible to connect to Sql Server for the purpose of executing simple Sql commands within a native iPhone app? If so, how does one go about it? I'm stumped. More generally, I would at least like to see how this is done with GCC. Thanks in advance, Rich

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  • Using web view behind a proxy (cocoa)

    - by Cal S
    Hi, I'm creating a web-browser type app (using a web view object) that needs to be able to connect to the internet via a proxy. Server, port, username and password can all be hardcoded into the app but unfortunately I have no idea how to customise the proxy settings of a web view without changing the system wide proxy settings. If you know how to do this please provide some example code, thanks a lot! (Also, if it changes anything - I'm developing for mac, not iPhone)

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