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CM_Open_Device_Interface_Key function

The CM_Open_Device_Interface_Key function opens the registry subkey that is used by applications and drivers to store information that is specific to a device interface.

Syntax

C++


CMAPI
CONFIGRET
WINAPI CM_Open_Device_Interface_Key(
  _In_  LPCWSTR        pszDeviceInterface,
  _In_  REGSAM         samDesired,
  _In_  REGDISPOSITION Disposition,
  _Out_ PHKEY          phkDeviceInterface,
  _In_  ULONG          ulFlags
);

Parameters

pszDeviceInterface [in]

Pointer to a string that identifies the device interface instance to open the registry subkey for.

samDesired [in]

The requested registry security access to the registry subkey.

Disposition [in]

Specifies how the registry key is to be opened. May be one of the following values:

RegDisposition_OpenAlways: Open the key if it exists. Otherwise, create the key.
RegDisposition_OpenExisting: Open the key only if it exists.

phkDeviceInterface [out]

Pointer to an HKEY that will receive the opened key upon success.

ulFlags [in]

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

Close the handle returned from this function by calling RegCloseKey.

Requirements

Target platform	Universal
Version	Available in Microsoft Windows Vista and later versions of Windows.
Header	Cfgmgr32.h (include Cfgmgr32.h)
Library	Cfgmgr32.lib
Unicode and ANSI names	CM_Open_Device_Interface_KeyW (Unicode) and CM_Open_Device_Interface_KeyA (ANSI)