Minimum curvature of swipes. Acceptable range: [0, 1]. Must be less than or equal to MaxCurvature.
Actual curvature of each swipe will be a random number between MinCurvature and MaxCurvature
Target Platforms: Windows 7, 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