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   sd_bus_message_append    ( 3 )

прикрепляйте поля к сообщению D-Bus на основе строки типа (Attach fields to a D-Bus message based on a type string)
  Name  |  Synopsis  |  Description  |  Types string grammar  |    Examples    |  Return value  |  Note  |  See also  |

Примеры (Examples)

Append a single basic type (the string "a string"):


           sd_bus_message *m;
           ...
           sd_bus_message_append(m, "s", "a string");


       Append all types of integers:


           uint8_t y = 1;
           int16_t n = 2;
           uint16_t q = 3;
           int32_t i = 4;
           uint32_t u = 5;
           int32_t x = 6;
           uint32_t t = 7;
           double d = 8.0;
           sd_bus_message_append(m, "ynqiuxtd", y, n, q, i, u, x, t, d);


       Append a structure composed of a string and a D-Bus path:


           sd_bus_message_append(m, "(so)", "a string", "/a/path");


       Append an array of UNIX file descriptors:


           sd_bus_message_append(m, "ah", 3, STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO);


       Append a variant, with the real type "g" (signature), and value
       "sdbusisgood":


           sd_bus_message_append(m, "v", "g", "sdbusisgood");


       Append a dictionary containing the mapping {1=>"a", 2=>"b",
       3=>""}:


           sd_bus_message_append(m, "a{is}", 3, 1, "a", 2, "b", 3, NULL);