D++ (DPP)
C++ Discord API Bot Library
Editing The Message From a Button Click
Note
This page expects you to be familiar with Button Clicks and extends from the Using Button Components page. Please visit the Using Button Components page if you are not already familiar with Button Clicks.

Editing messages where you had a button click can be done in a couple ways.

If you want to edit the message that had the buttons on, instead of doing event.reply("message");, you would do event.reply(dpp::ir_update_message, "message");, like so:

Note
You are still limited to the default interaction time (3 seconds) this way. Read on if you need more time!
#include <dpp/dpp.h>
#include <dpp/unicode_emoji.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) {
/* Instead of replying to the button click itself,
* we want to update the message that had the buttons on it.
*/
event.reply(dpp::ir_update_message, "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;
}

However, if you're going to take longer than 3 seconds to respond, you need to tell Discord to wait. The usual method is event.thinking(true); and then event.edit_response("I have thought long and hard about my actions.");, however, event.thinking() will create a new response if called from on_button_click, meaning you can no longer respond to the original response as you already did a response!

Instead, you want to do event.reply(dpp::ir_deferred_channel_message_with_source, ""); to tell Discord that you intend on editing the message that the button click came from, but you need time. The user will be informed that you've processed the button click (as required) via a loading state and then you have 15 minutes to do everything you need. To then edit the message, you need to do event.edit_response("new message!");, like so:

Note
If you want to silently acknowledge the button click (no thinking message), replace dpp::ir_deferred_channel_message_with_source with dpp::ir_deferred_update_message. You will still have 15 minutes to make a response.
#include <dpp/dpp.h>
#include <dpp/unicode_emoji.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) {
/* Instead of replying to the button click itself,
* we want to update the message that had the buttons on it.
*/
/* Pretend you're doing long calls here that may take longer than 3 seconds. */
/* Now, edit the response! */
event.edit_response("After a while, I can confirm 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;
}
dpp::button_click_t::custom_id
std::string custom_id
button custom id
Definition: dispatcher.h:733
dpp::slashcommand_t
User has issued a slash command.
Definition: dispatcher.h:715
dpp::st_wait
@ st_wait
Wait forever on a condition variable. The cluster will spawn threads for each shard and start() will ...
Definition: cluster.h:101
dpp::interaction_create_t::command
interaction command
command interaction
Definition: dispatcher.h:698
dpp::ir_deferred_channel_message_with_source
@ ir_deferred_channel_message_with_source
Acknowledge an interaction and edit a response later, the user sees a loading state.
Definition: appcommand.h:433
dpp::slashcommand
Represents an application command, created by your bot either globally, or on a guild.
Definition: appcommand.h:1361
dpp::utility::cout_logger
std::function< void(const dpp::log_t &)> DPP_EXPORT cout_logger()
Get a default logger that outputs to std::cout. e.g.
Definition: dispatcher.h:228
dpp::interaction::get_command_name
std::string get_command_name() const
Get the command name for a command interaction.
dpp::ir_update_message
@ ir_update_message
For components, edit the message the component was attached to.
Definition: appcommand.h:443
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
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