type
, which is currently "jpeg",
"png", "ico" or "bmp". See gdkPixbufSaveToBuffer
for more details.gdkPixbufSaveToBufferv(object, type, option.keys, option.values, .errwarn = TRUE)
type
option.keys
NULL
-terminatedoption.values
buffer
buffer.size
error
GError
] return location for error, or NULL