wiasValidateItemProperties function (wiamdef.h)

Artikel
02/22/2024

The wiasValidateItemProperties function validates a list of simple item properties against their current valid values.

Syntax

HRESULT wiasValidateItemProperties(
  [in] BYTE           *pWiasContext,
       ULONG          nPropSpec,
  [in] const PROPSPEC *pPropSpec
);

Parameters

[in] pWiasContext

Pointer to a WIA item context.

nPropSpec

Specifies the number of properties to validate.

[in] pPropSpec

Pointer to the first element of an array of PROPSPEC structures indicating the properties to validate.

Return value

On success, the function returns S_OK. If the function fails, it returns a standard COM error or one of the WIA_ERROR_XXX errors (described in the Microsoft Windows SDK documentation).

Remarks

This function validates simple property values of the following types grouped by attribute.

Attributes	Supported Types
WIA_PROP_FLAG	VT_UI1, VT_UI2, VT_UI4, VT_UI8, VT_I1, VT_I2, VT_I4
WIA_PROP_RANGE	VT_UI1, VT_UI2, VT_UI4, VT_UI8, VT_I1, VT_I2, VT_I4, VT_R4, VT_R8
WIA_PROP_LIST	VT_UI1, VT_UI2, VT_UI4, VT_UI8, VT_I1, VT_I2, VT_I4, VT_R4, VT_R8, VT_BSTR

The PROPSPEC structure is defined in the Windows SDK documentation.

Requirements

Requirement	Value
Minimum supported client	Available in Microsoft Windows Me and in Windows XP and later versions of the Windows operating systems.
Target Platform	Desktop
Header	wiamdef.h (include Wiamdef.h)
Library	Wiaservc.lib
DLL	Wiaservc.dll

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