---
name: "VarUI8FromDate"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/VarUI8FromDate"
---

# VarUI8FromDate(3w)

## NAME

**VarUI8FromDate** (OLEAUT32.434)

## SYNOPSIS

HRESULT VarUI8FromDate\
  (\
   DATE     *dateIn*,\
   ULONG64\* *pui64Out*\
  )

## DESCRIPTION

Convert a **VT\_DATE** to a **VT\_UI8**.

## PARAMS

*dateIn* **\[In\]**  Source.

*pui64Out* **\[Out\]**  Destination.

## RETURNS

**Success:** **S\_OK**.

**Failure:** **E\_INVALIDARG**, if the source value is invalid **DISP\_E\_OVERFLOW**, if the value will not fit in the destination **DISP\_E\_TYPEMISMATCH**, if the type cannot be converted

## IMPLEMENTATION

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

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

Debug channel **"variant"**.