---
name: "IsValidInterface"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/IsValidInterface"
---

# IsValidInterface(3w)

## NAME

**IsValidInterface** (OLE32.@)

## SYNOPSIS

BOOL IsValidInterface\
  (\
   LPUNKNOWN *punk*\
  )

## DESCRIPTION

Determines whether a pointer is a valid interface.

## PARAMS

*punk* **\[In\]**  Interface to be tested.

## RETURNS

**TRUE**, if the passed pointer is a valid interface, or **FALSE** otherwise.

## IMPLEMENTATION

Declared in **"ole2.h"**.

Implemented in **"dlls/ole32/ifs.c"**.

Debug channel **"olemalloc"**.