PSGetPropertySystem function (propsys.h)
Gets an instance of the subsystem object that implements IPropertySystem.
Syntax
PSSTDAPI PSGetPropertySystem(
[in] REFIID riid,
[out] void **ppv
);
Parameters
[in] riid
Type: REFIID
Reference to the IID of the requested interface.
[out] ppv
Type: void**
When this function returns, contains the interface pointer requested in riid. This is typically IPropertySystem.
Return value
Type: PSSTDAPI
Returns one of the following values.
Return code | Description |
---|---|
|
The interface was obtained. |
|
The ppv parameter is NULL. |
Remarks
You must initialize Component Object Model (COM) with CoInitialize or OleInitialize prior to calling PSGetPropertySystem. COM must remain initialized for the lifetime of this object. The property system object aggregates the free-threaded marshaller and is thread-safe.
We recommend that you use the IID_PPV_ARGS macro defined in Objbase.h to package the riid and ppv parameters. This macro provides the correct IID based on the interface pointed to by the value in ppv, which eliminates the possibility of a coding error.
Examples
The following example, to be included as part of a larger program, demonstrates how to use PSGetPropertySystem.
IPropertySystem *pSystem;
HRESULT hr = PSGetPropertySystem(IID_PPV_ARGS(&pSystem));
if (SUCCEEDED(hr))
{
// pSystem is now valid.
pSystem->Release();
}
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 |