This function is called to read from, or write to, the system registry.
HRESULT RegistryDataExchange(
T* pT,
enum RDXOperations rdxOp,
void* pItem = NULL
);
Parameters
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.
Return Value
Returns S_OK on success, or an error HRESULT on failure.
Remarks
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. |