Sending this keystroke itself is straight forward:

Global.DoSendKeys('^+{F12}');

Or the same in RVL:

However this will not work. The test will break at this statement. The reason - the shortcut itself is already taken by the Rapise Execution Monitor:

So the workaround is to disable execution monitor in Rapise by setting Enable Execution Monitor=False

In Rapise Global Settings dialog.