On Jun 28, 2011, at 6:18 PM, James Merkel wrote: > Kevin, > > As others have suggested you probably want to step down to more basic C > coding to handle this task. > You can just use C library functions to read data from the file: fopen(), > fseek(), fread(), fgetc(), fclose() etc. as discussed in Kernighan and > Ritchie. > > As far as big endian, little endian issues, most image files use the > convention 'MM' for big endian or 'II' for little endian somewhere in the > first few bytes of the file. You then need to load the data accordingly. For > example looking at a Photoshop Elements file, I see "MM' (two ASCII > characters) as the first two bytes of the file, announcing that the file is > big endian. > > A tool that may be helpful for you in looking at file data directly is a Hex > Editor. I use HexEdit which is freeware. Beware-- a Hex Editor is a sharp > tool, you can open any file on your system and modify it. > > Jim Merkel
Synalyzeit is a free hex editor that's fabulous. > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/jjoyce%40apple.com > > This email sent to jjo...@apple.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
