---
title: QueryInterface
framework: coreservices
role: symbol
role_heading: Instance Property
path: coreservices/mdimporterinterfacestruct/1446572-queryinterface
---

# QueryInterface

## Declaration

```swift
var QueryInterface: ((UnsafeMutableRawPointer?, REFIID, UnsafeMutablePointer<LPVOID?>?) -> HRESULT)!
```