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4/8/2010

This function converts variant data types to floatfrom OLECHAR.

Syntax 

HRESULT VarR4FromStr(
  OLECHAR* 
strIn, 
  LCID 
lcid, 
  Ulong 
dwFlags, 
  float* 
pfltOut 
);

Parameters

strIn

[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_TIMEVALUEONLY

Omits the date portion of a VT_DATE and retrieves only the time. Applies to conversions to or from dates.

Not used for VariantChangeTypeand VariantChangeTypeEx.

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 VariantChangeTypeand VariantChangeTypeEx.
pfltOut

[out] Points to the coerced value.

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