DwmApi Class (CSharp)

Language: CSharp

internal class DwmApi

{

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmEnableBlurBehindWindow(

        IntPtr hWnd, DWM_BLURBEHIND pBlurBehind);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmExtendFrameIntoClientArea(

        IntPtr hWnd, MARGINS pMargins);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern bool DwmIsCompositionEnabled();

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmEnableComposition(bool bEnable);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmGetColorizationColor(

        out int pcrColorization,

        [MarshalAs(UnmanagedType.Bool)]out bool pfOpaqueBlend);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern IntPtr DwmRegisterThumbnail(

        IntPtr dest, IntPtr source);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmUnregisterThumbnail(IntPtr hThumbnail);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmUpdateThumbnailProperties(

        IntPtr hThumbnail, DWM_THUMBNAIL_PROPERTIES props);

    [DllImport("dwmapi.dll", PreserveSig = false)]

    public static extern void DwmQueryThumbnailSourceSize(

        IntPtr hThumbnail, out Size size);

    [StructLayout(LayoutKind.Sequential)]

    public class DWM_THUMBNAIL_PROPERTIES

    {

        public uint dwFlags;

        public RECT rcDestination;

        public RECT rcSource;

        public byte opacity;

        [MarshalAs(UnmanagedType.Bool)]

        public bool fVisible;

        [MarshalAs(UnmanagedType.Bool)]

        public bool fSourceClientAreaOnly;

        public const uint DWM_TNP_RECTDESTINATION = 0x00000001;

        public const uint DWM_TNP_RECTSOURCE = 0x00000002;

        public const uint DWM_TNP_OPACITY = 0x00000004;

        public const uint DWM_TNP_VISIBLE = 0x00000008;

        public const uint DWM_TNP_SOURCECLIENTAREAONLY = 0x00000010;

    }

    [StructLayout(LayoutKind.Sequential)]

    public class MARGINS

    {

        public int cxLeftWidth, cxRightWidth,

                   cyTopHeight, cyBottomHeight;

        public MARGINS(int left, int top, int right, int bottom)

        {

            cxLeftWidth = left; cyTopHeight = top;

            cxRightWidth = right; cyBottomHeight = bottom;

        }

    }

    [StructLayout(LayoutKind.Sequential)]

    public class DWM_BLURBEHIND

    {

        public uint dwFlags;

        [MarshalAs(UnmanagedType.Bool)]

        public bool fEnable;

        public IntPtr hRegionBlur;

        [MarshalAs(UnmanagedType.Bool)]

        public bool fTransitionOnMaximized;

        public const uint DWM_BB_ENABLE = 0x00000001;

        public const uint DWM_BB_BLURREGION = 0x00000002;

        public const uint DWM_BB_TRANSITIONONMAXIMIZED = 0x00000004;

    }

    [StructLayout(LayoutKind.Sequential)]

    public struct RECT

    {

        public int left, top, right, bottom;

        public RECT(int left, int top, int right, int bottom)

        {

            this.left = left; this.top = top;

            this.right = right; this.bottom = bottom;

        }

    }

}