PSGetPropertyKeyFromName function (propsys.h)

Article
02/22/2024

Gets the property key for a canonical property name.

Syntax

PSSTDAPI PSGetPropertyKeyFromName(
  [in]  PCWSTR      pszName,
  [out] PROPERTYKEY *ppropkey
);

Parameters

[in] pszName

Type: PCWSTR

Pointer to a property name as a null-terminated, Unicode string.

[out] ppropkey

Type: PROPERTYKEY*

When this function returns, contains the requested property key.

Return value

Type: HRESULT

Returns one of the following values.

Return code	Description
S_OK	Property key structure was obtained.
E_INVALIDARG	The pszName parameter is NULL.
TYPE_E_ELEMENTNOTFOUND	The canonical property name does not exist in the schema subsystem cache.

Remarks

Property keys uniquely identify a property. For example, PKEY_Keywords corresponds to System.Keywords. This function succeeds only for properties registered as part of the property schema.

See PSGetPropertyDescriptionByName for a list of legacy property names that are also supported by the function.

Examples

The following example, to be included as part of a larger program, demonstrates how to use PSGetPropertyKeyFromName to obtain the property key for System.Keywords.

PROPERTYKEY key;

HRESULT hr = PSGetPropertyKeyFromName(L"System.Keywords", &key);

if (SUCCEEDED(hr))
{
    // The property key is now valid.
}

Requirements

Requirement	Value
Minimum supported client	Windows XP with SP2, Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 with SP1 [desktop apps only]
Target Platform	Windows
Header	propsys.h
Library	Propsys.lib
DLL	Propsys.dll (version 6.0 or later)
Redistributable	Windows Desktop Search (WDS) 3.0

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