a GInputStream from which to load the pixbuf
the width the image should have or -1 to not constrain the width
the height the image should have or -1 to not constrain the height
TRUE to preserve the image's aspect ratio
optional GCancellable object, NULL to ignore. [allow-none]
a GAsyncReadyCallback to call when the the pixbuf is loaded
the data to pass to the callback function
Creates a new pixbuf by asynchronously loading an image from an input stream. For more details see gdk_pixbuf_new_from_stream_at_scale(), which is the synchronous version of this function. When the operation is finished, callback will be called in the main thread. You can then call gdk_pixbuf_new_from_stream_finish() to get the result of the operation. Since 2.24