---
name: "CoIsOle1Class"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/CoIsOle1Class"
---

# CoIsOle1Class(3w)

## NAME

**CoIsOle1Class** (OLE32.@)

## SYNOPSIS

BOOL CoIsOle1Class\
  (\
   REFCLSID *clsid*\
  )

## DESCRIPTION

Determines whether the specified class an **OLE** v1 class.

## PARAMS

*clsid* **\[In\]**  Class to test.

## RETURNS

**TRUE** if the class is an **OLE** v1 class, or **FALSE** otherwise.

## IMPLEMENTATION

Declared in **"objbase.h"**.

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

Debug channel **"ole"**.