PowerCacheOffice/WindowsShellApi.cs at master · p1tchbend-tool/PowerCacheOffice · GitHub

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using System;
using System.Runtime.InteropServices;

namespace PowerCacheOffice
{
    public class WindowsShellApi
    {
        [DllImport("shell32.dll")]
        public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttribs, out SHFILEINFO psfi, uint cbFileInfo, SHGFI uFlags);

        [DllImport("shell32.dll", EntryPoint = "#727")]
        public static extern int SHGetImageList(int iImageList, ref Guid riid, ref IImageList ppv);

        [DllImport("shell32.dll", EntryPoint = "#727")]
        public static extern int SHGetImageList(SHIL iImageList, ref Guid riid, out IImageList ppv);

        [DllImport("shell32.dll", EntryPoint = "#727")]
        public static extern int SHGetImageList(SHIL iImageList, ref Guid riid, out IntPtr ppv);

        [DllImport("comctl32.dll", SetLastError = true)]
        public static extern IntPtr ImageList_GetIcon(IntPtr himl, int i, int flags);

        [Flags]
        public enum SHGFI
        {
            SHGFI_ICON = 0x000000100,
            SHGFI_DISPLAYNAME = 0x000000200,
            SHGFI_TYPENAME = 0x000000400,
            SHGFI_ATTRIBUTES = 0x000000800,
            SHGFI_ICONLOCATION = 0x000001000,
            SHGFI_EXETYPE = 0x000002000,
            SHGFI_SYSICONINDEX = 0x000004000,
            SHGFI_LINKOVERLAY = 0x000008000,
            SHGFI_SELECTED = 0x000010000,
            SHGFI_ATTR_SPECIFIED = 0x000020000,
            SHGFI_LARGEICON = 0x000000000,
            SHGFI_SMALLICON = 0x000000001,
            SHGFI_OPENICON = 0x000000002,
            SHGFI_SHELLICONSIZE = 0x000000004,
            SHGFI_PIDL = 0x000000008,
            SHGFI_USEFILEATTRIBUTES = 0x000000010,
            SHGFI_ADDOVERLAYS = 0x000000020,
            SHGFI_OVERLAYINDEX = 0x000000040
        }

        public struct SHFILEINFO
        {
            public IntPtr hIcon;
            public int iIcon;
            public uint dwAttributes;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
            public string szDisplayName;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
            public string szTypeName;
        }

        public static Guid IID_IImageList = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
        public static Guid IID_IImageList2 = new Guid("192B9D83-50FC-457B-90A0-2B82A8B5DAE1");

        [Flags]
        public enum SHIL
        {
            SHIL_JUMBO = 0x0004,
            SHIL_EXTRALARGE = 0x0002
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct POINT
        {
            int x;
            int y;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct RECT
        {
            public int left, top, right, bottom;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct IMAGEINFO
        {
            public IntPtr hbmImage;
            public IntPtr hbmMask;
            public int Unused1;
            public int Unused2;
            public RECT rcImage;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct IMAGELISTDRAWPARAMS
        {
            public int cbSize;
            public IntPtr himl;
            public int i;
            public IntPtr hdcDst;
            public int x;
            public int y;
            public int cx;
            public int cy;
            public int xBitmap;
            public int yBitmap;
            public int rgbBk;
            public int rgbFg;
            public int fStyle;
            public int dwRop;
            public int fState;
            public int Frame;
            public int crEffect;
        }

        [Flags]
        public enum ImageListDrawItemConstants : int
        {
            ILD_NORMAL = 0x0,
            ILD_TRANSPARENT = 0x1,
            ILD_BLEND25 = 0x2,
            ILD_SELECTED = 0x4,
            ILD_MASK = 0x10,
            ILD_IMAGE = 0x20,
            ILD_ROP = 0x40,
            ILD_OVERLAYMASK = 0xF00,
            ILD_PRESERVEALPHA = 0x1000,
            ILD_SCALE = 0x2000,
            ILD_DPISCALE = 0x4000
        }

        [ComImportAttribute()]
        [GuidAttribute("46EB5926-582E-4017-9FDF-E8998DAA0950")]
        [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
        public interface IImageList
        {
            [PreserveSig]
            int Add(IntPtr hbmImage, IntPtr hbmMask, ref int pi);

            [PreserveSig]
            int ReplaceIcon(int i, IntPtr hicon, ref int pi);

            [PreserveSig]
            int SetOverlayImage(int iImage, int iOverlay);

            [PreserveSig]
            int Replace(int i, IntPtr hbmImage, IntPtr hbmMask);

            [PreserveSig]
            int AddMasked(IntPtr hbmImage, int crMask, ref int pi);

            [PreserveSig]
            int Draw(ref IMAGELISTDRAWPARAMS pimldp);

            [PreserveSig]
            int Remove(int i);

            [PreserveSig]
            int GetIcon(int i, int flags, ref IntPtr picon);
        };
    }
}