VarBstrFromUI4 (Windows Embedded CE 6.0)
1/6/2010
This function converts variant data types to BSTR from unsigned long.
Syntax
WINOLEAUTAPI VarBstrFromUI4(
ULONG ulIn,
LCID lcid,
ULONG dwFlags,
BSTR pbstrOut
);
Parameters
- ulIn
[in] The value to coerce.
- lcid
[in] For conversions from string and VT_DISPATCH input, the LCID to use for the conversion.
dwFlags
[in] One or more of the following flags.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 returns 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 returns only the date.
Applies to conversions to or from dates.
Not used for VariantChangeType and VariantChangeTypeEx.
- pbstrOut
[out] Points to the coerced value.
Return Value
The following HRESULT values can be returned.
| 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 into this function causes an unexpected termination of the application.
To determine whether the platform supports this function, see Determining Supported COM APIs.
Requirements
| Header | oleauto.h |
| Library | oleaut32.lib |
| Windows Embedded CE | Windows CE 2.0 and later |
See Also
Reference
OLE Functions
Automation Functions
BSTR
VariantChangeType
VariantChangeTypeEx