// Returns the kind, reason and description of any error that occurs when using
// other methods in this API
func (pi *PixelIterator) GetLastError() error {
var et C.ExceptionType
csdescription := C.PixelGetIteratorException(pi.pi, &et)
defer C.free(unsafe.Pointer(csdescription))
if ExceptionType(et) != EXCEPTION_UNDEFINED {
pi.clearException()
return &PixelIteratorException{ExceptionType(C.int(et)), C.GoString(csdescription)}
}
return nil
}
func (self *PixelIterator) Error() error {
var exception C.ExceptionType
ptr := C.PixelGetIteratorException(self.iterator, &exception)
message := C.GoString(ptr)
C.PixelClearIteratorException(self.iterator)
C.MagickRelinquishMemory(unsafe.Pointer(ptr))
return errors.New(message)
}