nsdata
How to insert UIImage as blob using sqlite3_exec in objective-c
I\'m trying to cache some images in sqlite as nsdata and I\'m having an issue when I attempt to insert the byte array using sqlite3_exec and a raw SQL string (as NSString)[详细]
2023-02-18 10:37 分类:问答Making an UIImage from byte string
I am paring a XML and getting an image in Byte form and I have put that in a string. Now I have to draw that image.[详细]
2023-02-17 22:10 分类:问答converting a pointer to unsigned char to an NSImage
I have a structure which includes a pointer to a data set, which in this case is a 16-bit grayscale image.I want to convert this data to an NSImage so that I can display it, and then save it as a .TIF[详细]
2023-02-17 16:29 分类:问答NSData dataWithContentsOfURL
I have this method for button click (download). The problem is that it is terminating due to an exception:[详细]
2023-02-16 20:18 分类:问答Why won't this image show up? Using NSData and initWithData
NSURL* urlEx = [NSURL URLWithString:@\"Pacific_Map.png\"]; NSData* mapExIMGData = [[NSData alloc] initWithContentsOfURL: urlEx];[详细]
2023-02-16 03:14 分类:问答Strange data ending up in users' XML saved file
My app uses XML to save user data to a file. I have just recently received 2 reports from users who are seeing completely unexpected data in their file. Instead of XML, it looks like this:[详细]
2023-02-15 20:54 分类:问答NSURLRequest converting NSData to an array
I need to convert data received from the web via an array in a PHP script into an array that I can pull values out of. Here\'s my code![详细]
2023-02-15 02:08 分类:问答How can a moderately sized memory allocation fail in a 64 bit process on Mac OS X?
I\'m building a photo book layout application. The application frequently decompresses JPEG images into in-memory bitmap buffers. The size of the images is constrained to 100 megapixels (while they us[详细]
2023-02-14 21:09 分类:问答Convert NSData of Image from database to NSString in iPhone
I am converting NSData of Image from database to NSString in Iphone Here is my code imageData1 = [[NSData alloc] initWithBytes:sqlite3_column_blob(compiledStatement, 3) length: sqlite3_column_bytes([详细]
2023-02-14 16:20 分类:问答How to convert NSData of Image from database to NSString in iPhone?
I am converting NSData of Image from database to NSString in iPhone Here is my code imageData1 = [[NSData alloc] initWithBytes:sqlite3_column_blob(compiledStatement, 2) length: sqlite3_column_bytes([详细]
2023-02-14 10:22 分类:问答