function-pointer.md

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default-layout	Callbacks - Dynamsoft Barcode Reader SDK C Edition API Reference	This is the callbacks of Dynamsoft Barcode Reader SDK C Edition.	CB_Error, CB_IntermediateResult, CB_TextResult, Callbacks, api reference, c	true	/programming/c/api-reference/function-pointer.html

Callbacks

Function	Description
CB_Error	Represents the function that will handle the error code returned by the SDK.
CB_IntermediateResult	Represents the function that will handle the intermediate result array returned by the SDK.
CB_TextResult	Represents the function that will handle the text result array returned by the SDK.

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CB_Error

Represents the function that will handle the error code returned by the SDK.

typedef void(* CB_Error) (int frameId, int errorCode, void* pUser)

Parameters
frameId The ID of the frame.
errorCode Error Code generated when decoding the frame.
pUser Customized arguments passed to your function.

See Also
[Error Code]({{ site.c_cpp_enumerations }}error-code.html)

CB_IntermediateResult

Represents the function that will handle the intermediate result array returned by the SDK.

typedef void(* CB_IntermediateResult) (int frameId, IntermediateResultArray* pResults, void* pUser)

Parameters
frameId The ID of the frame.
pResults The intermediate results of the frame.
pUser Arguments passed to your function.

See Also
[IntermediateResultArray]({{ site.structs }}IntermediateResultArray.html?src=c)

CB_TextResult

Represents the function that will handle the text result array returned by the SDK.

typedef void(* CB_TextResult) (int frameId, TextResultArray *pResults, void *pUser)

Parameters
frameId The ID of the frame.
pResults Recognized barcode results of the frame.
pUser Arguments passed to your function.

See Also
[TextResultArray]({{ site.structs }}TextResultArray.html?src=c)