System settings are used to determine the caret blink duration. Note: This property returns a value that's double the caret blink time as returned by the OS. This is because this property indicates the time duration between successive caret blinks.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2