Function property_value_out 

pub unsafe extern "C" fn property_value_out(
    ctx: *mut PropertyValueContext,
    fmt: *const c_char,
    nparts: c_uint,
    ...
)

Builds key and value strings and outputs them via a callback function

Arguments

• ctx[in] - local property context
• fmt[in] - value format, set to NULL to bypass formatting
• nparts[in] - number of key parts (separated by character)
• ...[in] - list of key parts followed by value