gtkIconInfoGetEmbeddedRect
and gtkIconInfoGetAttachPoints should be returned in their
original form as specified in the icon theme, instead of scaled
appropriately for the pixbuf returned by gtkIconInfoLoadIcon.gtkIconInfoSetRawCoordinates(object, raw.coordinates)objectraw.coordinatesgtkIconInfoGetFilename, and seeing if it is non-NULL
and ends in '.svg'.
This function is provided primarily to allow compatibility wrappers
for older API's, and is not expected to be useful for applications.
Since 2.4