static extern bool SystemParametersInfo(SPI uiAction, uint uiParam, ref ANIMATIONINFO pvParam, SPIF fWinIni);

SPI, SPIF, ANIMATIONINFO

When using the SPI_GETANIMATION or SPI_SETANIMATION actions, the uiParam value must be set to (System.UInt32)Marshal.SizeOf(typeof(ANIMATIONINFO)).

    /// ANIMATIONINFO specifies animation effects associated with user actions.

    /// The uiParam value must be set to (System.UInt32)Marshal.SizeOf(typeof(ANIMATIONINFO)) when using this structure.

    public struct ANIMATIONINFO

      public ANIMATIONINFO(System.Int32 iMinAnimate)

        this.cbSize = (System.UInt32)Marshal.SizeOf(typeof(ANIMATIONINFO));

      /// Always must be set to (System.UInt32)Marshal.SizeOf(typeof(ANIMATIONINFO)).

Structure ANIMATIONINFO