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

# SHCreateMemStream(3w)

## NAME

**SHCreateMemStream** (SHLWAPI.12)

## SYNOPSIS

IStream \* SHCreateMemStream\
  (\
   const BYTE\* *lpbData*,\
   UINT        *dwDataLen*\
  )

## DESCRIPTION

Create an **IStream** object on a block of memory.

## PARAMS

*lpbData* **\[In\]**  Memory block to create the **IStream** object on.

*dwDataLen* **\[In\]**  Length of data block.

## RETURNS

**Success:** A pointer to the **IStream** object.

**Failure:** **NULL**, if any parameters are invalid or an error occurs.

## NOTES

A copy of the memory pointed to by *lpbData* is made, and is freed when the stream is released.

## IMPLEMENTATION

Not declared in a Wine header. The function is either undocumented, or missing from Wine.

Implemented in **"dlls/shlwapi/regstream.c"**.

Debug channel **"shell"**.