The NSString method - intValue unfortunately returns 0 (zero) for a hex string such as @”0x1234”
So to convert a hex string to an int I had to revert to using strtol() in stdlib.h (you don’t need to include the header file in your Cocoa source .m file)
http://developer.apple.com/documentation/Darwin/Reference/ManPages/man3/strtol.3.html
NSString *theHexString = @”0x34fd”; unsigned short theHexValue = (unsigned short)strtol([theHexString cStringUsingEncoding:NSMacOSRomanStringEncoding], nil, 0x10);
NSLog( [NSString stringWithFormat:@”Hex Value = 0x%4.4x\n”, theHexValue] );
Regards :)