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CA_VariantHasPtr

LabWindows/CVI

CA_VariantHasPtr

HRESULT CA_VariantHasPtr (const VARIANT *variant);

Purpose

Determines whether a variant contains a pointer to a data value. This is true if the type field of the variant contains the VT_BYREF flag.

Parameters

Input
Name Type Description
variant const VARIANT * Pointer to the variant variable to inspect.

Return Value

Name Type Description
result HRESULT 1 if variant contains a pointer to a value.

0 if variant does not contain a pointer to a value.

< 0 if variant is invalid.

Negative error codes indicate function failure.

Refer to <Program Files>\National Instruments\Shared\MSDTRedistributables\SDKHeaderFiles\8.1\winerror.h for Windows SDK error codes.

Additional Information

Library: ActiveX Library

Include file: cviauto.h

LabWindows/CVI compatibility: LabWindows/CVI 5.0 and later