File.read_uint32

Reads the next four bytes from this File object and returns it as an unsigned 32-bit integer Number object. The value is read from the zero-based File.pos position. File.pos is then incremented by 4. If this File object is invalid then the getter returns Nothing.

var f = File("/Users/garry/Desktop/test.txt")
f.read_uint32 # E.g: 1232236398