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

# CoInitialize(3w)

## NAME

**CoInitialize** (OLE32.@)

## SYNOPSIS

HRESULT CoInitialize\
  (\
   LPVOID *lpReserved*\
  )

## DESCRIPTION

Initializes the **COM** libraries by calling CoInitializeEx with **COINIT\_APARTMENTTHREADED**, ie it enters a **STA** thread.

## PARAMS

*lpReserved* **\[In\]**  Pointer to **IMalloc** interface (obsolete, should be **NULL**).

## RETURNS

**Success:** **S\_OK** if not already initialized, **S\_FALSE** otherwise.

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

## SEE ALSO

CoInitializeEx

## IMPLEMENTATION

Declared in **"compobj\_private.h"**.

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

Debug channel **"ole"**.