VariantCopyInd

pvarDest, pvargSrc)
VARIANT FAR* pvarDest
VARIANTARG FAR* pvargSrc

Frees the destination variant and makes a copy of the source VARIANTARG, performing the necessary indirection if the source is specified to be VT_BYREF.

Parameters

pvarDest

Pointer to the VARIANTARG to receive the copy.

pvargSrc

Pointer to the VARIANTARG to be copied.

Return Value

The SCODE obtained from the returned HRESULT is one of the following:

SCODE	Meaning
S_OK	Success.
DISP_E_ARRAYISLOCKED	The variant contains an array that is locked.
DISP_E_BADVARTYPE	The source and destination have an invalid variant type (usually uninitialized).
E_OUTOFMEMORY	Memory could not be allocated for the copy.
E_INVALIDARG	The argument pvargSrc was VT_ARRAY.

Comments

This function is useful when you need to make a copy of a variant and guarantee that it is not VT_BYREF, such as when handling arguments in an implementation of IDispatch::Invoke.

For example, if the source is a (VT_BYREF | VT_I2), the destination will be a ByVal VT_I2. The same is true for all legal VT_BYREF combinations including VT_VARIANT.

If pvargSrc is (VT_BYREF | VT_VARIANT) and the contained variant is also VT_BYREF, the contained variant is also dereferenced.

This function frees any existing contents of pvarDest.

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