glib:bytes-data (bytes)

bytes -- a g:bytes instance
data -- a pointer to the byte data, or a cffi:null-pointer value
size -- an integer for the size of the byte data

Get the byte data in the g:bytes instance. This function will always return the same pointer for a given g:bytes instance.

A cffi:null-pointer value may be returned if the size value is 0. This is not guaranteed, as the g:bytes instance may represent an empty string with data not a cffi:null-pointer value and the size value as 0. A cffi:null-pointer value will not be returned if the size value is non-zero.