ReadStringDef(ValueName: String; DefaultValue: String): String;
ValueName - name of the parameter, which value must be obtained.
DefaultValue - value that is used if parameter does not exist.
The ReadStringDef method reads string from string parameter in the registry. If the parameter with the ValueName name does not exist, the method returns DefaultValue.
Sub Main;
Var
RegKey, SubKey: IRegistryKey;
s: String;
Begin
RegKey := RegistryClass.CurrentUser;
SubKey := RegKey.OpenSubKey("Software\MyProject\Params", False);
s := SubKey.ReadStringDef("Param1", "Parameter does not exist");
End Sub Main;
After executing the example string value is read from the parameter with the Param1 name located in the registry subkey HKEY_CURRENT_USER\Software\MyProject\Params into the "s" variable. If the parameter does not exist, the "s" variable contains text "Parameter does not exist".
See also: