gdk-pixbuf:pixbuf-loader-write (loader buffer count)

loader -- a gdk-pixbuf:pixbuf-loader object
buffer -- a Lisp array for image data
count -- an integer for the length of buffer in bytes

True if the write was successful, or false if the loader cannot parse the buffer.

This will cause a pixbuf loader to parse the next count bytes of an image. It will return true if the data was loaded successfully, and false if an error occurred. A code fragment, which writes data into the pixbuf loader:

;; Create the image stream and the GdkPixbufLoader
(setf stream
      (open (sys-path "alphatest.png")
            :element-type '(unsigned-byte 8)))
(setf loader (gdk-pixbuf:pixbuf-loader-new))


...


(let* ((buffer (make-array 128 :element-type '(unsigned-byte 8)))
       (len (read-sequence buffer stream)))
  ...
  ;; Load the buffer into GdkPixbufLoader
  (gdk-pixbuf:pixbuf-loader-write loader buffer 128)
  ... )