RegistryDataExchange
This function is called to read from, or write to, the system registry.
 Important |
|---|
This function cannot be used in applications that execute in the Windows Runtime. |
HRESULT RegistryDataExchange(
T* pT,
enum RDXOperations rdxOp,
void* pItem= NULL
);
- pT
A pointer to the current object.
- rdxOp
An enum value that indicates which operation the function should perform. See the table in the Remarks section for the allowed values.
- pItem
Pointer to the data that is to be read from, or written to, the registry. The data can also represent a key to be deleted from the registry. The default value is NULL.
Returns S_OK on success, or an error HRESULT on failure.
The macros BEGIN_RDX_MAP and END_RDX_MAP expand to a function that calls RegistryDataExchange.
The possible enum values that indicate the operation the function should perform are shown in the following table:
Enum value | Operation |
|---|---|
eReadFromReg | Read data from the registry. |
eWriteToReg | Write data to the registry. |
eDeleteFromReg | Delete the key from the registry. |