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

# CoRevokeClassObject(3w)

## NAME

**CoRevokeClassObject** (OLE32.@)

## SYNOPSIS

HRESULT CoRevokeClassObject\
  (\
   DWORD *dwRegister*\
  )

## DESCRIPTION

Removes a class object from the class registry.

## PARAMS

*dwRegister* **\[In\]**  Cookie returned from **[CoRegisterClassObject(3w)](/CoRegisterClassObject/3w.md)**.

## RETURNS

**Success:** **S\_OK**.

**Failure:** **HRESULT** code.

## NOTES

Must be called from the same apartment that called **[CoRegisterClassObject(3w)](/CoRegisterClassObject/3w.md)**, otherwise it will fail with **RPC\_E\_WRONG\_THREAD**.

## SEE ALSO

CoRegisterClassObject

## IMPLEMENTATION

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

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

Debug channel **"ole"**.