readPixelBytes
Provides a #GBytes buffer containing the raw pixel data; the data must not be modified.
This function allows skipping the implicit copy that must be made if gdk_pixbuf_get_pixels() is called on a read-only pixbuf.
Return
A new reference to a read-only copy of the pixel data. Note that for mutable pixbufs, this function will incur a one-time copy of the pixel data for conversion into the returned #GBytes.
Since
2.32