Question

I have an 4 digit Hex NSString that’s something like “00C0” or “01C3”. I would like to be able to convert this to binary to see what bits are toggled. My searches return too many irrelevant results, please help.

Answer 1

NSScanner should do the trick:

NSString *string1 = @"00C0";
NSScanner *scanner = [NSScanner scannerWithString:string1];
unsigned int number = 0;
if ([scanner scanHexInt:&number]) {
    NSLog(@"number is %u", number); // number is 192
}