# ICMP_ChangesApplierCallback interface

*No description yet.*

```csharp
public interface ICMP_ChangesApplierCallback
```

**Namespace:** EDP · **Assembly:** Altium.SDK.Interfaces

## Methods

| Method | Returns | Description |
| --- | --- | --- |
| [ApplyCallback](#applycallback) | `void` |  |

### ApplyCallback

*No description yet.*

```csharp
void ApplyCallback(ICMP_ObjectDifference argChange, bool argWasApplied, string argResultCode, string argErrorMessage);
void ApplyCallback(object argChange, bool argWasApplied, string argResultCode, string argErrorMessage);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argChange` | [ICMP_ObjectDifference](https://altiumdeveloper.github.io/ad-sdk-docs/reference/edp/ICMP_ObjectDifference.md) | value |
| `argWasApplied` | `bool` | value |
| `argResultCode` | `string` | value |
| `argErrorMessage` | `string` | value |

**Returns:** nothing (`void`)

The first overload is an extension method of `ICMP_ChangesApplierCallbackHelper` (`using EDP;`) with typed parameters; the second is declared by the interface.

## Accepted by

[ICMP_PCBChangesApplier.ApplyChangesWithCallback](https://altiumdeveloper.github.io/ad-sdk-docs/reference/edp/ICMP_PCBChangesApplier.md#applychangeswithcallback)