VariantCopyInd (Windows CE 5.0)

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This function frees existing content of the destination variant and makes a copy of the source VARIANTARG, performing the necessary indirection if the source is specified to be VT_BYREF.

HRESULT VariantCopyInd(VARIANT FAR* pvarDest,VARIANTARG FAR* pvargSrc ); 

Parameters

  • pvarDest
    [in] Pointer to the VARIANTARG that receives the copy.
  • pvargSrc
    [in] Pointer to the VARIANTARG that is copied.

Return Values

Returns the HRESULT values shown in the following table.

Value Description
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.

Remarks

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

This function is useful when a copy of a variant is needed, and to 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 VT_BYREF, the contained variant is also dereferenced.

This function frees existing contents of pvarDest.

Requirements

OS Versions: Windows CE 2.0 and later.
Header: Oleauto.h.
Link Library: Oleaut32.lib.

See Also

Automation Functions | VARIANTARG | IDispatch::Invoke

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