Hey, I have 4 web form text fields and they correspond to 4 int in arduino
int red, green, blue, white;
The issue is you don't have to fill out all 4 fields so lets say white is not filled out or is delete. What do I set white to? I've tried setting it to NULL but that's no good. That means it's a NULL to the pointer? And I would get a value of zero '0', if I get white. Zero is a valid value in my case.
Just thought I'd get some input before I hack it. I know value range can't be more than 16 so I can set it to something like 30 to represent an empty field.