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VarBstrFromDate

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This function converts variant data types to BSTR from DATE.

Syntax

HRESULT VarBstrFromDate(
  DATE dateIn,
  LCID lcid,
  ULONG dwFlags,
  BSTR pbstrOut
);

Parameters

  • dateIn
    [in] The value to coerce.
  • lcid
    [in] For conversions from string and VT_DISPATCH input, the LCID to use for the conversion.
  • dwFlags
    [in] Specifies a value made from one or more flags.

    The following flags can be set for this parameter.

    Flag Description

    LOCALE_NOUSEROVERRIDE

    Uses the system default locale settings, rather than custom locale settings.

    VAR_CALENDAR_HIJRI

    If set, the Hijri calendar is used.

    Otherwise, the calendar sent in Control Panel is used.

    VAR_CALENDAR_THAI

    This flag is not supported in Windows Mobile or Windows Embedded CE.

    VAR_CALENDAR_GREGORIAN

    This flag is not supported in Windows Mobile or Windows Embedded CE.

    VAR_FOURDIGITYEARS

    This flag is not supported in Windows Mobile or Windows Embedded CE.

    VAR_TIMEVALUEONLY

    This flag is not supported in Windows Mobile or Windows Embedded CE.

    VAR_DATEVALUEONLY

    This flag is not supported in Windows Mobile or Windows Embedded CE.

  • pbstrOut
    [out] Points to the coerced value.

    The following flags can be set for this parameter.

    Flag Description

    LOCALE_NOUSEROVERRIDE

    Uses the system default locale settings, rather than custom locale settings.

    VAR_CALENDAR_HJRI

    If set, the Hijri calendar is used.

    Otherwise, the calendar sent in Control Panel is used.

    VAR_DATEVALUEONLY

    Omits the time portion of a VT_DATE and retrieves only the date.

    Applies to conversions to or from dates.

    Not used for VariantChangeType and VariantChangeTypeEx.

    VAR_TIMEVALUEONLY

    Omits the date portion of a VT_DATE and retrieves only the time.

    Applies to conversions to or from dates.

    Not used for VariantChangeType and VariantChangeTypeEx.

Return Value

Returns the HRESULT values shown in the following table.

Value Description

S_OK

Success.

DISP_E_BADVARTYPE

The input parameter is not a valid type of variant.

DISP_E_OVERFLOW

The data pointed to by the output parameter does not fit in the destination type.

DISP_E_TYPEMISMATCH

The argument could not be coerced to the specified type.

E_INVALIDARG

An argument is invalid.

E_OUTOFMEMORY

Memory could not be allocated for the conversion.

Remarks

Passing invalid (and under some circumstances NULL) pointers to this function causes an unexpected termination of the application.

Requirements

Header oleauto.h
Library oleaut32.lib
Windows Embedded CE Windows CE 2.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

Automation Functions
VariantChangeType
VariantChangeTypeEx