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

# WdtpInterfacePointer\_UserSize(3w)

## NAME

**WdtpInterfacePointer\_UserSize** (OLE32.@)

## SYNOPSIS

ULONG \_\_RPC\_USER  WdtpInterfacePointer\_UserSize\
  (\
   ULONG\*    *pFlags*,\
   ULONG     *RealFlags*,\
   ULONG     *StartingSize*,\
   IUnknown\* *punk*,\
   REFIID    *riid*\
  )

## DESCRIPTION

Calculates the buffer size required to marshal an interface pointer.

## PARAMS

*pFlags* **\[In\]**  Flags. See notes.

*RealFlags* **\[In\]**  The **MSHCTX** to use when marshaling the interface.

*punk* **\[In\]**  Interface pointer to size.

*StartingSize* **\[In\]**  Starting size of the buffer. This value is added on to the buffer size required for the clip format.

*riid* **\[In\]**  Id of interface to size.

## RETURNS

The buffer size required to marshal an interface pointer plus the starting size.

## NOTES

Even though the function is documented to take a pointer to a **ULONG** in *pFlags*, it actually takes a pointer to a **USER\_MARSHAL\_CB** structure, of which the first parameter is a **ULONG**.

## IMPLEMENTATION

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

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

Debug channel **"ole"**.