使用SHGetFileInfo 获取文件大图标的问题

啊飞凤飞飞 2012-08-06 03:10:11

SHGetFileInfo(path, dwAttr, ref fi, Marshal.SizeOf(fi) , dwFlag);
获得的都是小图标，16*16的，放大成32 效果就特别差，



internal static Icon GetIcon(string path, FILE_ATTRIBUTE dwAttr, SHGFI dwFlag)

        {

            SHFILEINFO fi = new SHFILEINFO();

            Icon ic = null;

            int iTotal = (int)SHGetFileInfo(path, dwAttr, ref fi, Marshal.SizeOf(fi) , dwFlag);

            ic = Icon.FromHandle(fi.hIcon);

            return ic;

        }



public static Icon GetFileIcon(string filePath)

        {

            return ShellImages.GetIcon(filePath, ShellImages.FILE_ATTRIBUTE.NORMAL, ShellImages.SHGFI.USEFILEATTRIBUTES | ShellImages.SHGFI.ICON | ShellImages.SHGFI.LARGEICON);

        }



public enum SHGFI : uint

        {

            ADDOVERLAYS = 0x20,

            ATTR_SPECIFIED = 0x20000,

            ATTRIBUTES = 0x800,

            DISPLAYNAME = 0x200,

            EXETYPE = 0x2000,

            ICON = 0x100,

            ICONLOCATION = 0x1000,

            LARGEICON = 0x0,

            LINKOVERLAY = 0x8000,

            OPENICON = 2,

            OVERLAYINDEX = 0x40,

            PIDL = 8,

            SELECTED = 0x10000,

            SHELLICONSIZE = 4,

            SMALLICON = 1,

            SYSICONINDEX = 0x4000,

            TYPENAME = 0x400,

            USEFILEATTRIBUTES = 0x10

        }