System Icons - Windows 10 style

Question

I have custom MessageBox which uses SystemIcons. The problem is that they look outdated. See picture bellow containing Warning/Exclamation icon. I want to set icon same as on the top MessageBox. How could I do it?

Related question - how to extract system icons from dll (I have tried 7-Zip method and Resource Hacker however could not get graphics inside, in Visual Studio however it shows but arranged in a file tree instead of thumbnails).

I have found "SecurityAndMaintenance_Alert.PNG" file in System32 folder which looks very similar, however border looks thinner and I would like to set exact same Icon if it is possible.

Answer 1

LoadIconWithScaleDown and LoadIconMetric are returning modern-looking standard system icons:

HRESULT ret = LoadIconWithScaleDown(NULL, IDI_WARNING, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), &icon);
HRESULT ret = LoadIconMetric(NULL, IDI_WARNING, LIM_LARGE, &icon);

Answer 2

You need to use SHGetStockIconInfo.

var sii = new NativeMethods.SHSTOCKICONINFO();
sii.cbSize = (UInt32)Marshal.SizeOf(typeof(NativeMethods.SHSTOCKICONINFO));
NativeMethods.SHGetStockIconInfo(NativeMethods.SHSTOCKICONID.SIID_WARNING,
    NativeMethods.SHGSI.SHGSI_ICON,
    ref sii);
this.pictureBox1.Image = Icon.FromHandle(sii.hIcon).ToBitmap();

You can see all the icons here.

And here is NativeMethods:

using System;
using System.Runtime.InteropServices;

public class NativeMethods
{
    public const int MAX_PATH = 260;

    [Flags]
    public enum SHGSI : uint
    {
        SHGSI_ICONLOCATION = 0,
        SHGSI_ICON = 0x000000100,
        SHGSI_SYSICONINDEX = 0x000004000,
        SHGSI_LINKOVERLAY = 0x000008000,
        SHGSI_SELECTED = 0x000010000,
        SHGSI_LARGEICON = 0x000000000,
        SHGSI_SMALLICON = 0x000000001,
        SHGSI_SHELLICONSIZE = 0x000000004
    }
    public enum SHSTOCKICONID : uint
    {
        SIID_DOCNOASSOC = 0,          //Blank document icon (Document of a type with no associated application).
        SIID_DOCASSOC = 1,            //Application-associated document icon (Document of a type with an associated application).
        SIID_APPLICATION = 2,         //Generic application with no custom icon.
        SIID_FOLDER = 3,              //Folder (generic, unspecified state).
        SIID_FOLDEROPEN = 4,          //Folder (open).
        SIID_DRIVE525 = 5,            //5.25-inch disk drive.
        SIID_DRIVE35 = 6,             //3.5-inch disk drive.
        SIID_DRIVEREMOVE = 7,         //Removable drive.
        SIID_DRIVEFIXED = 8,          //Fixed drive (hard disk).
        SIID_DRIVENET = 9,            //Network drive (connected).
        SIID_DRIVENETDISABLED = 10,   //Network drive (disconnected).
        SIID_DRIVECD = 11,            //CD drive.
        SIID_DRIVERAM = 12,           //RAM disk drive.
        SIID_WORLD = 13,              //The entire network.
        SIID_SERVER = 15,             //A computer on the network.
        SIID_PRINTER = 16,            //A local printer or print destination.
        SIID_MYNETWORK = 17,          //The Network virtual folder (FOLDERID_NetworkFolder/CSIDL_NETWORK).
        SIID_FIND = 22,               //The Search feature.
        SIID_HELP = 23,               //The Help and Support feature.
        SIID_SHARE = 28,              //Overlay for a shared item.
        SIID_LINK = 29,               //Overlay for a shortcut.
        SIID_SLOWFILE = 30,           //Overlay for items that are expected to be slow to access.
        SIID_RECYCLER = 31,           //The Recycle Bin (empty).
        SIID_RECYCLERFULL = 32,       //The Recycle Bin (not empty).
        SIID_MEDIACDAUDIO = 40,       //Audio CD media.
        SIID_LOCK = 47,               //Security lock.
        SIID_AUTOLIST = 49,           //A virtual folder that contains the results of a search.
        SIID_PRINTERNET = 50,         //A network printer.
        SIID_SERVERSHARE = 51,        //A server shared on a network.
        SIID_PRINTERFAX = 52,         //A local fax printer.
        SIID_PRINTERFAXNET = 53,      //A network fax printer.
        SIID_PRINTERFILE = 54,        //A file that receives the output of a Print to file operation.
        SIID_STACK = 55,              //A category that results from a Stack by command to organize the contents of a folder.
        SIID_MEDIASVCD = 56,          //Super Video CD (SVCD) media.
        SIID_STUFFEDFOLDER = 57,      //A folder that contains only subfolders as child items.
        SIID_DRIVEUNKNOWN = 58,       //Unknown drive type.
        SIID_DRIVEDVD = 59,           //DVD drive.
        SIID_MEDIADVD = 60,           //DVD media.
        SIID_MEDIADVDRAM = 61,        //DVD-RAM media.
        SIID_MEDIADVDRW = 62,         //DVD-RW media.
        SIID_MEDIADVDR = 63,          //DVD-R media.
        SIID_MEDIADVDROM = 64,        //DVD-ROM media.
        SIID_MEDIACDAUDIOPLUS = 65,   //CD+ (enhanced audio CD) media.
        SIID_MEDIACDRW = 66,          //CD-RW media.
        SIID_MEDIACDR = 67,           //CD-R media.
        SIID_MEDIACDBURN = 68,        //A writeable CD in the process of being burned.
        SIID_MEDIABLANKCD = 69,       //Blank writable CD media.
        SIID_MEDIACDROM = 70,         //CD-ROM media.
        SIID_AUDIOFILES = 71,         //An audio file.
        SIID_IMAGEFILES = 72,         //An image file.
        SIID_VIDEOFILES = 73,         //A video file.
        SIID_MIXEDFILES = 74,         //A mixed file.
        SIID_FOLDERBACK = 75,         //Folder back.
        SIID_FOLDERFRONT = 76,        //Folder front.
        SIID_SHIELD = 77,             //Security shield. Use for UAC prompts only.
        SIID_WARNING = 78,            //Warning.
        SIID_INFO = 79,               //Informational.
        SIID_ERROR = 80,              //Error.
        SIID_KEY = 81,                //Key.
        SIID_SOFTWARE = 82,           //Software.
        SIID_RENAME = 83,             //A UI item, such as a button, that issues a rename command.
        SIID_DELETE = 84,             //A UI item, such as a button, that issues a delete command.
        SIID_MEDIAAUDIODVD = 85,      //Audio DVD media.
        SIID_MEDIAMOVIEDVD = 86,      //Movie DVD media.
        SIID_MEDIAENHANCEDCD = 87,    //Enhanced CD media.
        SIID_MEDIAENHANCEDDVD = 88,   //Enhanced DVD media.
        SIID_MEDIAHDDVD = 89,         //High definition DVD media in the HD DVD format.
        SIID_MEDIABLURAY = 90,        //High definition DVD media in the Blu-ray Disc™ format.
        SIID_MEDIAVCD = 91,           //Video CD (VCD) media.
        SIID_MEDIADVDPLUSR = 92,      //DVD+R media.
        SIID_MEDIADVDPLUSRW = 93,     //DVD+RW media.
        SIID_DESKTOPPC = 94,          //A desktop computer.
        SIID_MOBILEPC = 95,           //A mobile computer (laptop).
        SIID_USERS = 96,              //The User Accounts Control Panel item.
        SIID_MEDIASMARTMEDIA = 97,    //Smart media.
        SIID_MEDIACOMPACTFLASH = 98,  //CompactFlash media.
        SIID_DEVICECELLPHONE = 99,    //A cell phone.
        SIID_DEVICECAMERA = 100,      //A digital camera.
        SIID_DEVICEVIDEOCAMERA = 101, //A digital video camera.
        SIID_DEVICEAUDIOPLAYER = 102, //An audio player.
        SIID_NETWORKCONNECT = 103,    //Connect to network.
        SIID_INTERNET = 104,          //The Network and Internet Control Panel item.
        SIID_ZIPFILE = 105,           //A compressed file with a .zip file name extension.
        SIID_SETTINGS = 106,          //The Additional Options Control Panel item.
        SIID_DRIVEHDDVD = 132,        //Windows Vista with Service Pack 1 (SP1) and later. High definition DVD drive (any type - HD DVD-ROM, HD DVD-R, HD-DVD-RAM) that uses the HD DVD format.
        SIID_DRIVEBD = 133,           //Windows Vista with SP1 and later. High definition DVD drive (any type - BD-ROM, BD-R, BD-RE) that uses the Blu-ray Disc format.
        SIID_MEDIAHDDVDROM = 134,     //Windows Vista with SP1 and later. High definition DVD-ROM media in the HD DVD-ROM format.
        SIID_MEDIAHDDVDR = 135,       //Windows Vista with SP1 and later. High definition DVD-R media in the HD DVD-R format.
        SIID_MEDIAHDDVDRAM = 136,     //Windows Vista with SP1 and later. High definition DVD-RAM media in the HD DVD-RAM format.
        SIID_MEDIABDROM = 137,        //Windows Vista with SP1 and later. High definition DVD-ROM media in the Blu-ray Disc BD-ROM format.
        SIID_MEDIABDR = 138,          //Windows Vista with SP1 and later. High definition write-once media in the Blu-ray Disc BD-R format.
        SIID_MEDIABDRE = 139,         //Windows Vista with SP1 and later. High definition read/write media in the Blu-ray Disc BD-RE format.
        SIID_CLUSTEREDDRIVE = 140,    //Windows Vista with SP1 and later. A cluster disk array.
        SIID_MAX_ICONS = 174,         //The highest valid value in the enumeration. Values over 160 are Windows 7-only icons.
    }
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    public struct SHSTOCKICONINFO
    {
        public UInt32 cbSize;
        public IntPtr hIcon;
        public Int32 iSysIconIndex;
        public Int32 iIcon;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = MAX_PATH)]
        public string szPath;
    }
    [DllImport("Shell32.dll", SetLastError = false)]
    public static extern Int32 SHGetStockIconInfo(SHSTOCKICONID siid, SHGSI uFlags, ref SHSTOCKICONINFO psii);
}