IWDFDevice::GetPnpState method (wudfddi.h)
[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]
The GetPnpState method determines whether the given Plug and Play (PnP) property of a device is on or off (or set to the default state).
Syntax
WDF_TRI_STATE GetPnpState(
[in] WDF_PNP_STATE State
);
Parameters
[in] State
A WDF_PNP_STATE-typed value that identifies the PnP property to retrieve status about.
Return value
GetPnpState returns one of the following WDF_TRI_STATE-typed values that identifies the state of the PnP property that is specified in the State parameter.
| Return code | Description |
|---|---|
|
The PnP property is set to the default state. |
|
The PnP property is turned off. |
|
The PnP property is turned on. |
Requirements
| Requirement | Value |
|---|---|
| End of support | Unavailable in UMDF 2.0 and later. |
| Target Platform | Desktop |
| Minimum UMDF version | 1.5 |
| Header | wudfddi.h (include Wudfddi.h) |
| DLL | WUDFx.dll |