---
name: "VarR8FromUI1"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/VarR8FromUI1"
---

# VarR8FromUI1(3w)

## NAME

**VarR8FromUI1** (OLEAUT32.78)

## SYNOPSIS

HRESULT VarR8FromUI1\
  (\
   BYTE    *bIn*,\
   double\* *pDblOut*\
  )

## DESCRIPTION

Convert a **VT\_UI1** to a **VT\_R8**.

## PARAMS

*bIn* **\[In\]**  Source.

*pDblOut* **\[Out\]**  Destination.

## RETURNS

**S\_OK**.

## IMPLEMENTATION

Declared in **"oleauto.h"**.

Implemented in **"dlls/oleaut32/vartype.c"**.

Debug channel **"variant"**.