Package com.sun.jna.platform.win32

# Class Cfgmgr32Util

java.lang.Object
com.sun.jna.platform.win32.Cfgmgr32Util

public abstract class Cfgmgr32Util extends Object
Cfgmgr32 utility API.

## Nested Class Summary

Nested Classes
Modifier and Type
Class
Description
`static class`
`Cfgmgr32Util.Cfgmgr32Exception`

## Constructor Summary

Constructors
Constructor
Description
`Cfgmgr32Util()`

## Method Summary

Modifier and Type
Method
Description
`static String`
`CM_Get_Device_ID(int devInst)`
Utility method to call Cfgmgr32's CM_Get_Device_ID_Size, allocates the required memory for the Buffer parameter based on the type mapping used, calls to CM_Get_Device_ID, and returns the received string.
`static Object`
`CM_Get_DevNode_Registry_Property(int devInst, int ulProperty)`
Utility method to call Cfgmgr32's CM_Get_DevNode_Registry_Property that allocates the required memory for the Buffer parameter, and returns values of the appropriate type.

### Methods inherited from class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

## Constructor Details

### Cfgmgr32Util

public Cfgmgr32Util()

## Method Details

### CM_Get_Device_ID

public static String CM_Get_Device_ID(int devInst) throws Cfgmgr32Util.Cfgmgr32Exception
Utility method to call Cfgmgr32's CM_Get_Device_ID_Size, allocates the required memory for the Buffer parameter based on the type mapping used, calls to CM_Get_Device_ID, and returns the received string.

Parameters:
  `devInst` - Caller-supplied device instance handle that is bound to the local machine.
Returns:
  The device instance ID string.
Throws:
  `Cfgmgr32Util.Cfgmgr32Exception`

### CM_Get_DevNode_Registry_Property

public static Object CM_Get_DevNode_Registry_Property(int devInst, int ulProperty) throws Cfgmgr32Util.Cfgmgr32Exception
Utility method to call Cfgmgr32's CM_Get_DevNode_Registry_Property that allocates the required memory for the Buffer parameter, and returns values of the appropriate type.

Parameters:
  `devInst` - Caller-supplied device instance handle that is bound to the local machine.
  `ulProperty` - A `CM_DRP_`-prefixed constant value that identifies the device property to be obtained from the registry. These constants are defined in Cfgmgr32.h.
Returns:
  An `Object` containing the specified registry property for the device.

  If the property is of type `WinNT.REG_SZ`, a `String` is returned.

  If the property is of type `WinNT.REG_MULTI_SZ`, an array of `String` is returned.

  If the property is of type `WinNT.REG_DWORD`, an `Integer` is returned.

  If the property is of type `WinNT.REG_BINARY`, an array of `Byte` is returned.

  If no value exists for this property (error `Cfgmgr32.CR_NO_SUCH_VALUE`), returns `null`.

Throws:
  `Cfgmgr32Util.Cfgmgr32Exception` - on any errors other than `Cfgmgr32.CR_NO_SUCH_VALUE`