Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
The GetSubunitCount method gets the number of subunits in the device topology.
Syntax
HRESULT GetSubunitCount(
[out] UINT *pCount
);
Parameters
[out] pCount
Pointer to a UINT variable into which the method writes the subunit count (the number of subunits in the device topology).
Return value
If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.
| Return code | Description |
|---|---|
|
Pointer pCount is NULL. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | devicetopology.h |