CM_Get_DevNode_PropertyW function (cfgmgr32.h)
The CM_Get_DevNode_Property function retrieves a device instance property.
Syntax
CMAPI CONFIGRET CM_Get_DevNode_PropertyW(
[in] DEVINST dnDevInst,
[in] const DEVPROPKEY *PropertyKey,
[out] DEVPROPTYPE *PropertyType,
[out] PBYTE PropertyBuffer,
[in, out] PULONG PropertyBufferSize,
[in] ULONG ulFlags
);
Parameters
[in] dnDevInst
Device instance handle that is bound to the local machine.
[in] PropertyKey
Pointer to a DEVPROPKEY structure that represents the device property key of the requested device instance property.
[out] PropertyType
Pointer to a DEVPROPTYPE-typed variable that receives the property-data-type identifier of the requested device instance property, where the property-data-type identifier is the bitwise OR between a base-data-type identifier and, if the base-data type is modified, a property-data-type modifier.
[out] PropertyBuffer
Pointer to a buffer that receives the requested device instance property. CM_Get_DevNode_Property retrieves the requested property only if the buffer is large enough to hold all the property value data. The pointer can be NULL.
[in, out] PropertyBufferSize
The size, in bytes, of the PropertyBuffer buffer. If PropertyBuffer is set to NULL, *PropertyBufferSize must be set to zero. As output, if the buffer is not large enough to hold all the property value data, CM_Get_DevNode_Property returns the size of the data, in bytes, in *PropertyBufferSize.
[in] ulFlags
Reserved. Must be set to zero.
Return value
If the operation succeeds, the function returns CR_SUCCESS. Otherwise, it returns one of the CR_-prefixed error codes defined in Cfgmgr32.h.
Remarks
CM_Get_DevNode_Property is part of the Unified Device Property Model.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Microsoft Windows Vista and later versions of Windows. |
| Target Platform | Universal |
| Header | cfgmgr32.h (include Cfgmgr32.h) |
| Library | Cfgmgr32.lib |
| DLL | CfgMgr32.dll |