2014/10/15 下午 10:09:33

iphone Programming Glossary: getbytes

Best way to serialize a NSData into an hexadeximal string

http://stackoverflow.com/questions/1305225/best-way-to-serialize-a-nsdata-into-an-hexadeximal-string

NSMutableString stringWithCapacity 64 int length deviceToken length char bytes malloc sizeof char length deviceToken getBytes bytes length length for int i 0 i length i str appendFormat @ 02.2hhX bytes i free bytes return str Thanks for your inputs...

How to implement Blowfish algorithm in iOS

http://stackoverflow.com/questions/13507384/how-to-implement-blowfish-algorithm-in-ios

aLeftRange aRightBox dataToEncrypt subdataWithRange aRightRange Convert bytes into unsigned long aLeftBox getBytes dl length sizeof unsigned long aRightBox getBytes dr length sizeof unsigned long Encipher Blowfish_Encrypt ctx dl dr Put.. aRightRange Convert bytes into unsigned long aLeftBox getBytes dl length sizeof unsigned long aRightBox getBytes dr length sizeof unsigned long Encipher Blowfish_Encrypt ctx dl dr Put bytes back dataToEncrypt replaceBytesInRange aLeftRange.. aLeftRange aRightBox decryptedData subdataWithRange aRightRange Convert bytes into unsigned long aLeftBox getBytes dl length sizeof unsigned long aRightBox getBytes dr length sizeof unsigned long Decipher Blowfish_Decrypt ctx dl dr Put..

iPhone writing binary data

http://stackoverflow.com/questions/1526416/iphone-writing-binary-data

data writeToFile file atomically YES NSData read NSData dataWithContentsOfFile file float b2 NSRange test 0 4 read getBytes b2 range test The weird thing is that the file written seems to be 8 bytes and not 4. It is even possible to init the nsdata..

iPhone SDK: accessing indexed color PNG images

http://stackoverflow.com/questions/3251595/iphone-sdk-accessing-indexed-color-png-images

nsdata NSData CGDataProviderCopyData data char rawbuf malloc nsdata length if rawbuf printf rawbuf failed n nsdata getBytes rawbuf int w CGImageGetWidth img int h CGImageGetHeight img int bpl CGImageGetBytesPerRow img printf width d d bpl height..

How to store custom objects with struct in Coredata

http://stackoverflow.com/questions/3492449/how-to-store-custom-objects-with-struct-in-coredata

Finding image type from NSData or UIImage

http://stackoverflow.com/questions/4147311/finding-image-type-from-nsdata-or-uiimage

can guess at the content type by looking at the first byte NSString contentTypeForImageData NSData data uint8_t c data getBytes c length 1 switch c case 0xFF return @ image jpeg case 0x89 return @ image png case 0x47 return @ image gif case 0x49 case..

Getting video from ALAsset

http://stackoverflow.com/questions/4545982/getting-video-from-alasset

file. return Byte buffer Byte malloc bufferSize int read 0 offset 0 written 0 NSError err if size 0 do read rep getBytes buffer fromOffset offset length bufferSize error err written fwrite buffer sizeof char read f offset read while read..

iOS: Select a GIF from the photo library, convert to NSData for use in multipart/form-data

http://stackoverflow.com/questions/5187251/ios-select-a-gif-from-the-photo-library-convert-to-nsdata-for-use-in-multipart

defaultRepresentation NSLog @ size of asset in bytes d representation size unsigned char bytes 4 representation getBytes bytes fromOffset 0 length 4 error nil NSLog @ first four bytes 02x c 02x c 02x c 02x c bytes 0 bytes 0 bytes 1 bytes..

CocoaAsyncSocket and reading data from a socket

http://stackoverflow.com/questions/6784872/cocoaasyncsocket-and-reading-data-from-a-socket

I figure the next logical step is to figure out the size of the stream and I do that with UInt32 readLength data getBytes readLength length 4 readLength ntohl readLength After hard coding a string of 12 bytes on the server side readLength does.. void onSocket AsyncSocket sock didReadData NSData data withTag long tag if tag HEADER_TAG UInt32 readLength data getBytes readLength length 4 readLength ntohl readLength int offset 4 NSRange range NSMakeRange offset readLength char buffer readLength.. 4 readLength ntohl readLength int offset 4 NSRange range NSMakeRange offset readLength char buffer readLength data getBytes buffer range range NSLog @ buffer s buffer sock readDataToLength readLength withTimeout 1 tag MESSAGE_TAG else if tag MESSAGE_TAG..

How to convert NSData to byte array in iPhone?

http://stackoverflow.com/questions/724086/how-to-convert-nsdata-to-byte-array-in-iphone

the array to the correct size you must free byteData when you're done and copy the bytes into it. You could also use getBytes len as indicated by others if you want to use a fixed length array. This avoids malloc free but is less extensible and more..

Using ALAssetsLibrary and ALAsset take out Image as NSData

http://stackoverflow.com/questions/8473110/using-alassetslibrary-and-alasset-take-out-image-as-nsdata

asset ALAssetRepresentation rep asset defaultRepresentation Byte buffer Byte malloc rep.size NSUInteger buffered rep getBytes buffer fromOffset 0.0 length rep.size error nil NSData data NSData dataWithBytesNoCopy buffer length buffered freeWhenDone..

Get video NSData from ALAsset url iOS

http://stackoverflow.com/questions/8791049/get-video-nsdata-from-alasset-url-ios

code ALAssetRepresentation rep asset defaultRepresentation Byte buffer Byte malloc rep.size NSUInteger buffered rep getBytes buffer fromOffset 0.0 length rep.size error nil NSData data NSData dataWithBytesNoCopy buffer length buffered freeWhenDone..

any objective-c library to parse/read word documents? [duplicate]

http://stackoverflow.com/questions/8849144/any-objective-c-library-to-parse-read-word-documents

the text. Make a range out of those two UInt32s and then read the text from that range in the data. UInt32 fcMin data getBytes fcMin range NSMakeRange 536 sizeof UInt32 UInt32 ccpText data getBytes ccpText range NSMakeRange 588 sizeof UInt32 NSData.. from that range in the data. UInt32 fcMin data getBytes fcMin range NSMakeRange 536 sizeof UInt32 UInt32 ccpText data getBytes ccpText range NSMakeRange 588 sizeof UInt32 NSData textData data subdataWithRange NSMakeRange fcMin 512 ccpText NSString..

Get Exif data from UIImage - UIImagePickerController

http://stackoverflow.com/questions/9766394/get-exif-data-from-uiimage-uiimagepickercontroller

buffer to hold image data uint8_t buffer Byte malloc image_representation.size NSUInteger length image_representation getBytes buffer fromOffset 0.0 length image_representation.size error nil if length 0 buffer NSData object free buffer afterwards..