VarR4FromStr (Compact 2013)

3/26/2014

This function converts variant data types to float from OLECHAR.

Syntax

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

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 VariantChangeType and 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 VariantChangeType and VariantChangeTypeEx.

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.

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.

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.

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

Header	oleauto.h
Library	oleaut32.lib