gtk-text-buffer-insert-pixbuf (buffer iter pixbuf)
Inserts an image into the text buffer at iter. The image will be counted as one character in character counts, and when obtaining the buffer contents as a string, will be represented by the Unicode "object replacement character" 0xFFFC. Note that the "slice" variants for obtaining portions of the buffer as a string include this character for pixbufs, but the "text" variants do not. E. g. see the functions gtk-text-buffer-get-slice and gtk-text-buffer-get-text.