- text
- Array of chars to measure and return their unioned bounds
- index
- Index of the first char in the array to measure
- count
- The number of chars, beginning at index, to measure
- bounds
- Returns the unioned bounds of all the text. Must be allocated by the caller.
Return in bounds (allocated by the caller) the smallest rectangle that encloses all of the characters, with an implied origin at (0,0).