# FormatCallback ## **Overview** **Related Modules:** [Format](format.md) **Description:** Defines listener callbacks for the format. ## **Summary** ## Data Fields

Variable Name

Description

privateDataHandle

CALLBACK_HANDLE

OnError )(CALLBACK_HANDLE privateDataHandle, int32_t errorType, int32_t errorCode)

int32_t(*

Called when a format error occurs during capturing. This callback is used to report the errors.

OnInfo )(CALLBACK_HANDLE privateDataHandle, int32_t type, int32_t extra)

int32_t(*

Called when an information event occurs during capturing. This callback is used to report capturing information.

## **Details** ## **Field Documentation** ## OnError ``` int32_t(* FormatCallback::OnError) ([CALLBACK_HANDLE](format.md#gab928f39c359734527bda3fd160f89331) [privateDataHandle](formatcallback.md#a4e4c7c6789cbf8bfc1aa0444dcd106b5), int32_t errorType, int32_t errorCode) ``` **Description:** Called when a format error occurs during capturing. This callback is used to report the errors. **Parameters:**

Name

Description
privateDataHandle Indicates the private data handle.
errorType Indicates the error type. For details, see FormatErrorType.
errorCode Indicates the error code.
**Returns:** Returns **0** if the operation is successful; returns a non-zero value otherwise. ## OnInfo ``` int32_t(* FormatCallback::OnInfo) ([CALLBACK_HANDLE](format.md#gab928f39c359734527bda3fd160f89331) [privateDataHandle](formatcallback.md#a4e4c7c6789cbf8bfc1aa0444dcd106b5), int32_t type, int32_t extra) ``` **Description:** Called when an information event occurs during capturing. This callback is used to report capturing information. **Parameters:**

Name

Description
privateDataHandle Indicates the private data handle.
type Indicates the information type. For details, see FormatInfoType.
extra Indicates other information, for example, the start time position of the captured file.
**Returns:** Returns **0** if the operation is successful; returns a non-zero value otherwise. ## privateDataHandle ``` [CALLBACK_HANDLE](format.md#gab928f39c359734527bda3fd160f89331) FormatCallback::privateDataHandle ``` **Description:** Private data handle