GTK4 Example: Popover containing a TextView

popover.c

/** popover.c	
 *
 * COMPILE
 *
 * gcc `pkg-config --cflags gtk4` -o popover popover.c `pkg-config --libs gtk4`
 *
 * RUN
 *
 * ./popover
 */

//static int app_flags = G_APPLICATION_FLAGS_NONE;

#include <gtk/gtk.h> 

static void
activate( GtkApplication *app, gpointer user_data )
{
	GtkWidget *window, *box, *popover;

	window = gtk_application_window_new( app );

	gtk_window_set_title( GTK_WINDOW( window ), "Window" );
	gtk_window_set_default_size( GTK_WINDOW( window ), 1000, 1000 );

	box = gtk_box_new( GTK_ORIENTATION_VERTICAL, 0 );
	gtk_window_set_child( GTK_WINDOW( window ), box );

	popover = gtk_popover_new();

	gtk_widget_set_parent( popover, box );

	gtk_popover_set_has_arrow( GTK_POPOVER( popover ), FALSE );

	gtk_popover_set_position( GTK_POPOVER( popover ), GTK_POS_RIGHT );

	gtk_popover_set_child( GTK_POPOVER( popover ),
		gtk_text_view_new() );

	gtk_widget_set_size_request( popover, 1000, 1000 );

	gtk_widget_show( window );

	gtk_popover_popup( GTK_POPOVER( popover ) );

}

int
main( int argc, char **argv )
{
	GtkApplication *app;
	int status;

	app = gtk_application_new( "org.gtk.example", G_APPLICATION_FLAGS_NONE );
	g_signal_connect( app, "activate", G_CALLBACK( activate ), NULL );
	status = g_application_run( G_APPLICATION( app ), argc, argv );
	g_object_unref( app );

	return status;
}