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iOS 7 style Blur view

...ice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo]; NSError *error; AVCaptureDeviceInput *deviceInput = [AVCaptureDeviceInput deviceInputWithDevice:inputDevice error:&error]; if ([session canAddInput:deviceInput]) { [session addInput:deviceInput]; } ...
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How to get Core Data object from specific Object ID?

...ectWithID:(NSManagedObjectID *)objectID error:(NSError **)error Fetches the object from the store that has that ID, or nil if it doesn't exist. (Be aware: there are two methods on NSManagedObjectContext with similar-seeming names that tripped me up. To help keep...
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How can I profile C++ code running on Linux?

... try-catch-finally 6,43055 gold badges3232 silver badges5959 bronze badges answered Dec 17 '08 at 20:34 NazgobNazgob ...
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Facebook Post Link Image

... I receieved this error from the lint tool. All the images referenced by og:image must be at least 200px in both dimensions. Please check all the images with tag og:image in the given url and ensure that it meets the minimum specification.. ...
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Unique BooleanField value in Django?

...he pre_save method on django.db.models.BooleanField. Instead of raising an error if another field was True, I made all other fields False if it was True. Also instead of raising an error if the field was False and no other field was True, I saved it the field as True fields.py from django.db.mode...
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How to add multi line comments in makefiles

...ition in the ifeq evaluates as false, gmake will happily ignore the syntax errors inside the ifeq. – Eric Melski May 19 '15 at 20:51 ...
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How to check if NSString begins with a certain character

...ple, the code below checks to see if a string begins with 10, which is the error code used to identify a certain problem. NSString* myString = @"10:Username taken"; if([myString hasPrefix:@"10"]) { //display more elegant error message } ...
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Cannot delete directory with Directory.Delete(path, true)

... directory a\b is open in Explorer, b will be deleted but you will get the error 'directory is not empty' for a even though it is empty when you go and look. The current directory of any application (including Explorer) retains a handle to the directory. When you call Directory.Delete(true), it dele...
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mysql -> insert into tbl (select from another table) and some default values [duplicate]

...s city_name from test.cities as citydb; i am using this query it give me error can any one help me to solve this error? – Chintan Mathukiya Apr 7 at 12:57 ...
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The 'packages' element is not declared

...ig stated, the schema is indeed not validated (VS will complain about such error in any XML file, not just only for nuget). But since the file is auto-generated is safe (and only used by nuget - which handles the XML just fine) it is perfectly fine to ignore the warnings. – Joe...