learning

#include <stdio.h>
#include <gtk/gtk.h>

static gboolean focus_callback(GtkWidget *gtk_window,
                               GdkEvent *event,
                               GtkIMContext *im_context) {
  gtk_widget_grab_focus(gtk_window);
  gtk_im_context_focus_in(im_context);
  gtk_im_context_reset(im_context);
  return TRUE;