D++ (DPP)  10.0.30
C++ Discord API Bot Library
Using Button Components

Discord's newest features support sending buttons alongside messages, which when clicked by the user trigger an interaction which is routed by D++ as an on_button_click event. To make use of this, use this code as in this example.

#include <dpp/dpp.h>
int main() {
dpp::cluster bot("token");
/* The event is fired when someone issues your commands */
bot.on_slashcommand([&bot](const dpp::slashcommand_t& event) {
/* Check which command they ran */
if (event.command.get_command_name() == "button") {
/* Create a message */
dpp::message msg(event.command.channel_id, "this text has a button");
/* Add an action row, and then a button within the action row. */
msg.add_component(
dpp::component().add_component(
dpp::component()
.set_label("Click me!")
.set_type(dpp::cot_button)
.set_emoji(dpp::unicode_emoji::smile)
.set_style(dpp::cos_danger)
.set_id("myid")
)
);
/* Reply to the user with our message. */
event.reply(msg);
}
});
/* When a user clicks your button, the on_button_click event will fire,
* containing the custom_id you defined in your button.
*/
bot.on_button_click([&bot](const dpp::button_click_t& event) {
/* Button clicks are still interactions, and must be replied to in some form to
* prevent the "this interaction has failed" message from Discord to the user.
*/
event.reply("You clicked: " + event.custom_id);
});
bot.on_ready([&bot](const dpp::ready_t& event) {
if (dpp::run_once<struct register_bot_commands>()) {
/* Create and register a command when the bot is ready */
bot.global_command_create(dpp::slashcommand("button", "Send a message with a button!", bot.me.id));
}
});
bot.start(dpp::st_wait);
return 0;
}

When the feature is functioning, the code below will produce buttons on the reply message like in the image below:

dpp::button_click_t::custom_id
std::string custom_id
button custom id
Definition: dispatcher.h:733
unicode_emoji.h
dpp::slashcommand_t
User has issued a slash command.
Definition: dispatcher.h:715
dpp.h
dpp::st_wait
@ st_wait
Wait forever on a condition variable.
Definition: cluster.h:101
main
int main()
Definition: soak.cpp:28
dpp::interaction_create_t::command
interaction command
command interaction
Definition: dispatcher.h:698
dpp::utility::cout_logger
std::function< void(const dpp::log_t &)> DPP_EXPORT cout_logger()
Get a default logger that outputs to std::cout.
Definition: dispatcher.h:228
dpp::slashcommand
Represents an application command, created by your bot either globally, or on a guild.
Definition: appcommand.h:1358
dpp::interaction::get_command_name
std::string get_command_name() const
Get the command name for a command interaction.
Definition: slashcommand.cpp:487
dpp::cluster
The cluster class represents a group of shards and a command queue for sending and receiving commands...
Definition: cluster.h:99
dpp::button_click_t
Click on button.
Definition: dispatcher.h:723
dpp::ready_t
Session ready.
Definition: dispatcher.h:981