Graphics, sound and multimedia • Using GTK4 to play sound on the RP5

Code:

#include <gtk/gtk.h>void done( GObject *object ){    g_object_unref( object );}void play( const char *name ){    GtkMediaStream *stream;    stream = gtk_media_file_new_for_filename( name );    gtk_media_stream_set_volume( stream, 1.0 );    g_signal_connect( stream, "notify::ended", G_CALLBACK( done ), NULL );    gtk_media_stream_play( stream );}void playSound( GtkWidget *button ){    play( "sample.wav" );}void activate( GtkApplication *app, gpointer user_data ){    GtkWidget *window;    GtkWidget *button;    window = gtk_application_window_new( app );    gtk_window_set_title( GTK_WINDOW( window ), "Play Sound" );    gtk_window_set_resizable( GTK_WINDOW( window ), FALSE );    button = gtk_button_new_with_label( "play" );    g_signal_connect( button, "clicked", G_CALLBACK( playSound ), NULL );    gtk_window_set_child( GTK_WINDOW( window ), button );    gtk_window_present( GTK_WINDOW( window ) );}int main( int argc, char *argv[] ){    GtkApplication *app;    int status;    gtk_init();    app = gtk_application_new( "com.example.sound", G_APPLICATION_DEFAULT_FLAGS );    g_signal_connect( app, "activate", G_CALLBACK( activate ), NULL );    status = g_application_run( G_APPLICATION( app ), argc, argv );    g_object_unref( app );    return status;}