> For the complete documentation index, see [llms.txt](https://sandbox-docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sandbox-docs.verifone.com/s-adk-5.1-programmers-guide/readme/modules/group__sdicallback.md).

# SDI and EMV callbacks

[Functions](#func-members)

|           |                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| --------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Functions |                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| void      | [setCallbackData](#gac5c6159718bd73d3bf80d320e0db5a08) (void \*d)                                                                                                                                                                                                                                                                                                                                                                   |
| void      | [setStatusCallback](#ga823e5713481277604b8e8740b7908953) (void(\*cb)(void \*data, int digits, std::string \&display))                                                                                                                                                                                                                                                                                                               |
| void      | [setControlCallback](#gaf1aa6cc653c07adc697e2cb2cc4fa6d4) (int(\*cb)(void \*data, [TLV](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_t_l_v.md) \&t))                                                                                                                                                                                                                                    |
| void      | [setNotifyCallback](#ga6cb13ee0fa80d5816d673febab88e69b) (void(\*cb)(void \*data, [TLV](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_t_l_v.md) \&t))                                                                                                                                                                                                                                    |
| void      | [setNavigatorCallback](#ga1dfc34b165f679f65a6b6eac6e63837d) (void(\*cb)(void \*data, int status))                                                                                                                                                                                                                                                                                                                                   |
| void      | [setCardDetectCallback](#gafc4be5e72143f6ea12185dec087ef197) (void(\*cb)(void \*data, int retcode, unsigned char tec\_out, [EMVTxn](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/structvfisdi_1_1_e_m_v_txn.md) \&emv\_out, [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&plugin\_result)) |
| void      | [setEMVCallback](#ga30c8aba2dc67708b8880967576f7473a) (void(\*cb)(void \*data, unsigned type, [EMVTxn](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/structvfisdi_1_1_e_m_v_txn.md) \&in, [EMVTxn](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/structvfisdi_1_1_e_m_v_txn.md) \&out))                                                                                       |
| void      | [setAsyncCardDetectEmvCallback](#gae2dc52ee22f4abe358ca411baaeef759) (void(\*cb)(void \*data, unsigned type, [EMVTxn](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/structvfisdi_1_1_e_m_v_txn.md) \&in))                                                                                                                                                                                                |
| void      | [setCardRemovalCallback](#gae7bce74819aa4fb698febc5d3bfd0121) (void(\*cb)(void \*data))                                                                                                                                                                                                                                                                                                                                             |
| void      | [setDisconnectCallback](#gade9449ce1e2d63670d4e53f83d9fea1c) (void(\*cb)(void \*data))                                                                                                                                                                                                                                                                                                                                              |

### DetailedDescription <a href="#detailed-description" id="detailed-description"></a>

### FunctionDocumentation <a href="#function-documentation" id="function-documentation"></a>

### setAsyncCardDetectEmvCallback() <a href="#gae2dc52ee22f4abe358ca411baaeef759" id="gae2dc52ee22f4abe358ca411baaeef759"></a>

void setAsyncCardDetectEmvCallback

set async card detect callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **type** callback type (see EMVCallbackType) \[in] **in** TLV data received from SDI server

{% hint style="info" %}
It is safe it the callback modifies *in*, modifications are ignored.
{% endhint %}

### setCallbackData() <a href="#gac5c6159718bd73d3bf80d320e0db5a08" id="gac5c6159718bd73d3bf80d320e0db5a08"></a>

void setCallbackData

set callback data passed on as data pointer to the callback functions. The data pointer is shared between all callback functions.

**Parameters**

\[in] **d** callback data pointer

### setCardDetectCallback() <a href="#gafc4be5e72143f6ea12185dec087ef197" id="gafc4be5e72143f6ea12185dec087ef197"></a>

void setCardDetectCallback

set card detect callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **retcode** return code that would have been returned in crdPollDetect \[in] **tec\_out** selected card technology (DFA108) \[in] **emv\_out** emv data \[in] **plugin\_result** plugin result of the card detect trigger (DFA101)

{% hint style="info" %}
Important: The callback function must not invoke any method of the same [SDIClient](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_s_d_i_client.md) object or a deadlock may occur.
{% endhint %}

### setCardRemovalCallback() <a href="#gae7bce74819aa4fb698febc5d3bfd0121" id="gae7bce74819aa4fb698febc5d3bfd0121"></a>

void setCardRemovalCallback

set card removal callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData()

### setControlCallback() <a href="#gaf1aa6cc653c07adc697e2cb2cc4fa6d4" id="gaf1aa6cc653c07adc697e2cb2cc4fa6d4"></a>

void setControlCallback

set control callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **t** TLV data received from SDI server

#### Returns

\[unsupported block]

{% hint style="info" %}
ALT\_INPUT\_FORMAT\_STRING and CONTINUATION\_MODE can be set by updating *t*.
{% endhint %}

{% hint style="info" %}
Important: The callback function must not invoke any method of the same [SDIClient](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_s_d_i_client.md) object or a deadlock may occur.
{% endhint %}

{% hint style="info" %}
It is safe if the callback modifies *t*.
{% endhint %}

### setDisconnectCallback() <a href="#gade9449ce1e2d63670d4e53f83d9fea1c" id="gade9449ce1e2d63670d4e53f83d9fea1c"></a>

void setDisconnectCallback

set callback, that gets invoked when the connection to SDI server has been closed by SDI server

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData()

### setEMVCallback() <a href="#ga30c8aba2dc67708b8880967576f7473a" id="ga30c8aba2dc67708b8880967576f7473a"></a>

void setEMVCallback

set EMV callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **type** callback type (see EMVCallbackType) \[in] **in** TLV data received from SDI server \[out] **out** TLV data to be sent to SDI server

{% hint style="info" %}
It is safe it the callback modifies *in*, modifications are ignored.
{% endhint %}

### setNavigatorCallback() <a href="#ga1dfc34b165f679f65a6b6eac6e63837d" id="ga1dfc34b165f679f65a6b6eac6e63837d"></a>

void setNavigatorCallback

set navigator callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **status** navigator status:00 Digit selected01 OK selected02 Cancel selected03 Backspace/Clear selected04 Multiple touches detected05 Pin digit underflow06 Pin digit overflow10 Selection confirmed

{% hint style="info" %}
Important: The callback function must not invoke any method of the same [SDIClient](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_s_d_i_client.md) object or a deadlock may occur.
{% endhint %}

### setNotifyCallback() <a href="#ga6cb13ee0fa80d5816d673febab88e69b" id="ga6cb13ee0fa80d5816d673febab88e69b"></a>

void setNotifyCallback

set notifycallback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **t** TLV data received from SDI server

{% hint style="info" %}
Important: The callback function must not invoke any method of the same [SDIClient](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_s_d_i_client.md) object or a deadlock may occur.
{% endhint %}

{% hint style="info" %}
It is safe it the callback modifies *t*, modifications are ignored.
{% endhint %}

### setStatusCallback() <a href="#ga823e5713481277604b8e8740b7908953" id="ga823e5713481277604b8e8740b7908953"></a>

void setStatusCallback

set status callback

**Parameters**

\[in] **cb** pointer to callback function, NULL to disable callback

The callback gets the following parameters:

**Parameters**

\[in] **data** data pointer as set by setCallbackData() \[in] **digits** number of digits entered so far \[in] **display** string for display

{% hint style="info" %}
Important: The callback function must not invoke any method of the same [SDIClient](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.1_staging/classvfisdi_1_1_s_d_i_client.md) object or a deadlock may occur.
{% endhint %}


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