I wanna display a image from the internet how can I put it？
GTK+ doesn t read files from the Internet, you re going to have to do that part yourself.
Once you have the pixel data in memory in a known format (such as JPEG or PNG), call gdk_pixbuf_new_from_stream() (after setting up an in-memory stream) to load it.
Then hand that pixbuf to gtk_image_new_from_pixbuf(), add your GtkImage to a GtkWindow, call gtk_widget_show_all() on the window, and you should be done.
I know it s an old post but I ll elaborate for anyone who stumbles upon this thread.
You ll want to use libsoup for this, it ties into the GLib main loop and can therefore work asynchronously.
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