Thursday, May 26, 2011

CSharp Dwmapi Class

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;
        }
    }
}



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