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DVARIANT.PutPropVariantmethod

Initializes DVARIANT from the contents of a PROPVARIANT structure.

COMmethodDVARIANT.INCdocumented

Syntax

FUNCTION PutPropVariant (BYVAL pPropVar AS PROPVARIANT PTR) AS HRESULT

Parameters

NameDescription
pPropVarPointer to a source PROPVARIANT structure.

Return value

If this function succeeds, it returns S_OK (0). Otherwise, it returns an HRESULT error code.

Description

Initializes DVARIANT from the contents of a PROPVARIANT structure.

Remarks

Normally, the data stored in the PROPVARIANT is copied to the VARIANT without a datatype change. However, in the following cases, there is no direct VARIANT support for the datatype, and they are converted as shown.

VT_BLOB, VT_STREAM
Converted to VT_UNKNOWN. The punkVal member will contain a pointer to an IStream that contains the source data.

VT_LPSTR, VT_LPWSTR, VT_CLSID
Converted to VT_BSTR,

VT_FILETIME
Converted to VT_DATE.

VT_VECTOR OR x
Converted to VT_ARRAY OR x

The following types cannot be converted with this function.

VT_STORAGE
VT_BLOB_OBJECT
VT_STREAMED_OBJECT
VT_STORED_OBJECT
VT_CF
VT_VECTOR OR VT_CF

Reference

  • Include file DVARIANT.INC
  • Defined in AfxNova/DVARIANT.inc:1568
  • Documented in COM/DVARIANT Class.md
  • Topic: DVARIANT Class