Thanks for downloading Dynamsoft Barcode Reader Package!
Your download will start shortly. If your download does not begin, click here to retry.
ErrorCallBack
An abstract class that contains an abstract method error_callback_func
.
class ErrorCallBack(ABC)
Abstract Method
error_callback_func
Sets callback function to process errors which is triggered when the library finishes decoding a frame. You need to implement it in the subclass.
Parameters
[in] frame_id <int>
: The ID of the frame.
[in] error <int>
: Error code generated when decoding the frame.
[in] user_data <object>
: Customized arguments passed to your function.
ErrorCallBack.error_callback_func(frame_id, error, user_data)