IMMDeviceCollection::GetCount method (mmdeviceapi.h)
The GetCount method retrieves a count of the devices in the device collection.
Syntax
HRESULT GetCount(
[out] UINT *pcDevices
);
Parameters
[out] pcDevices
Pointer to a UINT variable into which the method writes the number of devices in the device collection.
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 |
|---|---|
|
Parameter pcDevices is NULL. |
Remarks
For a code example that calls the GetCount method, see Device Properties.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | mmdeviceapi.h |