libusb_log_cb typedef

libusb_log_cb = Pointer<NativeFunction<libusb_log_cbFunction>>

\ingroup libusb_lib Callback function for handling log messages. \param ctx the context which is related to the log message, or NULL if it is a global log message \param level the log level, see \ref libusb_log_level for a description \param str the log message

Since version 1.0.23, \ref LIBUSB_API_VERSION >= 0x01000107

\see libusb_set_log_cb()

Implementation

typedef libusb_log_cb = ffi.Pointer<ffi.NativeFunction<libusb_log_cbFunction>>;