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

# SHMapHandle(3w)

## NAME

**SHMapHandle** (SHLWAPI.11)

## SYNOPSIS

HANDLE SHMapHandle\
  (\
   HANDLE *hShared*,\
   DWORD  *dwDstProcId*,\
   DWORD  *dwSrcProcId*,\
   DWORD  *dwAccess*,\
   DWORD  *dwOptions*\
  )

## DESCRIPTION

Copy a sharable memory handle from one process to another.

## PARAMS

*hShared* **\[In\]**  Shared memory handle to duplicate.

*dwDstProcId* **\[In\]**  Id of the process wanting the duplicated handle.

*dwSrcProcId* **\[In\]**  Id of the process owning *hShared*.

*dwAccess* **\[In\]**  Desired **[DuplicateHandle(3w)](/DuplicateHandle/3w.md)** access.

*dwOptions* **\[In\]**  Desired **[DuplicateHandle(3w)](/DuplicateHandle/3w.md)** options.

## RETURNS

**Success:** A handle suitable for use by the *dwDstProcId* process.

**Failure:** A **NULL** handle.

## IMPLEMENTATION

Exported by ordinal only. Use **[GetProcAddress(3w)](/GetProcAddress/3w.md)** to obtain a pointer to the function.

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

Debug channel **"shell"**.