saveToCallbackv  
  open fun saveToCallbackv(saveFunc: PixbufSaveFunc, type: String, optionKeys: List<String>? = null, optionValues: List<String>? = null): <Error class: unknown class><Boolean>(source)
Vector version of gdk_pixbuf_save_to_callback().
Saves pixbuf to a callback in format @type, which is currently "jpeg", "png", "tiff", "ico" or "bmp".
If @error is set, FALSE will be returned.
See method@GdkPixbuf.Pixbuf.save_to_callback for more details.
Return
whether an error was set
Since
2.4
Parameters
saveFunc 
a function that is called to save each block of data that the save routine generates.
type
name of file format.
optionKeys 
name of options to set
optionValues 
values for named options