DrtUpdateKey function (drt.h)

The DrtUpdateKey function updates the application data associated with a registered key.

Syntax

HRESULT DrtUpdateKey(
  [in] HDRT_REGISTRATION_CONTEXT hKeyRegistration,
  [in] DRT_DATA                  *pAppData
);

[in] hKeyRegistration

The DRT handle returned by the DrtRegisterKey function specifying a registered key within the DRT instance.

[in] pAppData

The new application data to associate with the key.

This function returns S_OK on success. Other possible values include:

Return code	Description
E_INVALIDARG	pAppData is NULL The value of cb in pAppData is less than 0. The value of cb in pAppData is more than 5120. The value of pb in pAppData is NULL.
E_HANDLE	hKeyRegistration is an invalid handle.
E_OUTOFMEMORY	The system is out of memory.

Requirement	Value
Minimum supported client	Windows 7 Professional [desktop apps only]
Minimum supported server	Windows Server 2008 R2 [desktop apps only]
Target Platform	Windows
Header	drt.h
Library	Drt.lib
DLL	Drt.dll