为WPF按钮添加UAC盾牌图标
在上一篇文章中，介绍了如何获取系统Shell的图标。在C#中调用SHGetStockIconInfo即可获取获取图标。
https://www.cnblogs.com/zhaotianff/p/17662167.html
定义SHGetStockIconInfo函数用到的数据结构
public enum SHSTOCKICONID : uint
{
/// Document of a type with no associated application.
SIID_DOCNOASSOC = 0,
/// Document of a type with an associated application.
SIID_DOCASSOC = 1,
/// Generic application with no custom icon.
SIID_APPLICATION = 2,
/// Folder (generic, unspecified state).
SIID_FOLDER = 3,
/// Folder (open).
SIID_FOLDEROPEN = 4,
/// 5.25-inch disk drive.
SIID_DRIVE525 = 5,
/// 3.5-inch disk drive.
SIID_DRIVE35 = 6,
/// Removable drive.
SIID_DRIVEREMOVE = 7,
/// Fixed drive (hard disk).
SIID_DRIVEFIXED = 8,
/// Network drive (connected).
SIID_DRIVENET = 9,
/// Network drive (disconnected).
SIID_DRIVENETDISABLED = 10,
/// CD drive.
SIID_DRIVECD = 11,
/// RAM disk drive.
SIID_DRIVERAM = 12,
/// The entire network.
SIID_WORLD = 13,
/// A computer on the network.
SIID_SERVER = 15,
/// A local printer or print destination.
SIID_PRINTER = 16,
/// The Network virtual folder (FOLDERID_NetworkFolder/CSIDL_NETWORK).
SIID_MYNETWORK = 17,
/// The Search feature.
SIID_FIND = 22,
/// The Help and Support feature.
SIID_HELP = 23,
/// Overlay for a shared item.
SIID_SHARE = 28,
/// Overlay for a shortcut.
SIID_LINK = 29,
/// Overlay for items that are expected to be slow to access.
SIID_SLOWFILE = 30,
/// The Recycle Bin (empty).
SIID_RECYCLER = 31,
/// The Recycle Bin (not empty).
SIID_RECYCLERFULL = 32,
/// Audio CD media.
SIID_MEDIACDAUDIO = 40,
/// Security lock.
SIID_LOCK = 47,
/// A virtual folder that contains the results of a search.
SIID_AUTOLIST = 49,
/// A network printer.
SIID_PRINTERNET = 50,
/// A server shared on a network.
SIID_SERVERSHARE = 51,
/// A local fax printer.
SIID_PRINTERFAX = 52,
/// A network fax printer.
SIID_PRINTERFAXNET = 53,
/// A file that receives the output of a Print to file operation.
SIID_PRINTERFILE = 54,
/// A category that results from a Stack by command to organize the contents of a folder.
SIID_STACK = 55,
/// Super Video CD (SVCD) media.
SIID_MEDIASVCD = 56,
/// A folder that contains only subfolders as child items.
SIID_STUFFEDFOLDER = 57,
/// Unknown drive type.
SIID_DRIVEUNKNOWN = 58,
/// DVD drive.
SIID_DRIVEDVD = 59,
/// DVD media.
SIID_MEDIADVD = 60,
/// DVD-RAM media.
SIID_MEDIADVDRAM = 61,
/// DVD-RW media.
SIID_MEDIADVDRW = 62,
/// DVD-R media.
SIID_MEDIADVDR = 63,
/// DVD-ROM media.
SIID_MEDIADVDROM = 64,
/// CD+ (enhanced audio CD) media.
SIID_MEDIACDAUDIOPLUS = 65,
/// CD-RW media.
SIID_MEDIACDRW = 66,
/// CD-R media.
SIID_MEDIACDR = 67,
/// A writable CD in the process of being burned.
SIID_MEDIACDBURN = 68,
/// Blank writable CD media.
SIID_MEDIABLANKCD = 69,
/// CD-ROM media.
SIID_MEDIACDROM = 70,
/// An audio file.
SIID_AUDIOFILES = 71,
/// An image file.
SIID_IMAGEFILES = 72,
/// A video file.
SIID_VIDEOFILES = 73,
/// A mixed file.
SIID_MIXEDFILES = 74,
/// Folder back.
SIID_FOLDERBACK = 75,
/// Folder front.
SIID_FOLDERFRONT = 76,
/// Security shield. Use for UAC prompts only.
SIID_SHIELD = 77,
/// Warning.
SIID_WARNING = 78,
/// Informational.
SIID_INFO = 79,
/// Error.
SIID_ERROR = 80,
/// Key.
SIID_KEY = 81,
/// Software.
SIID_SOFTWARE = 82,
/// A UI item, such as a button, that issues a rename command.
SIID_RENAME = 83,
/// A UI item, such as a button, that issues a delete command.
SIID_DELETE = 84,
/// Audio DVD media.
SIID_MEDIAAUDIODVD = 85,
/// Movie DVD media.
SIID_MEDIAMOVIEDVD = 86,
/// Enhanced CD media.
SIID_MEDIAENHANCEDCD = 87,
/// Enhanced DVD media.
SIID_MEDIAENHANCEDDVD = 88,
/// High definition DVD media in the HD DVD format.
SIID_MEDIAHDDVD = 89,
/// High definition DVD media in the Blu-ray Disc™ format.
SIID_MEDIABLURAY = 90,
/// Video CD (VCD) media.
SIID_MEDIAVCD = 91,
/// DVD+R media.
SIID_MEDIADVDPLUSR = 92,
/// DVD+RW media.
SIID_MEDIADVDPLUSRW = 93,
/// A desktop computer.
SIID_DESKTOPPC = 94,
/// A mobile computer (laptop).
SIID_MOBILEPC = 95,
/// The User Accounts Control Panel item.
SIID_USERS = 96,
/// Smart media.
SIID_MEDIASMARTMEDIA = 97,
/// CompactFlash media.
SIID_MEDIACOMPACTFLASH = 98,
/// A cell phone.
SIID_DEVICECELLPHONE = 99,
/// A digital camera.
SIID_DEVICECAMERA = 100,
/// A digital video camera.
SIID_DEVICEVIDEOCAMERA = 101,
/// An audio player.
SIID_DEVICEAUDIOPLAYER = 102,
/// Connect to network.
SIID_NETWORKCONNECT = 103,
/// The Network and Internet Control Panel item.
SIID_INTERNET = 104,
/// A compressed file with a .zip file name extension.
SIID_ZIPFILE = 105,
/// The Additional Options Control Panel item.
SIID_SETTINGS = 106,
/// High definition DVD drive (any type - HD DVD-ROM, HD DVD-R, HD-DVD-RAM) that uses the HD DVD format.
/// Windows Vista with SP1 and later.
SIID_DRIVEHDDVD = 132,
/// High definition DVD drive (any type - BD-ROM, BD-R, BD-RE) that uses the Blu-ray Disc format.
/// Windows Vista with SP1 and later.
SIID_DRIVEBD = 133,
/// High definition DVD-ROM media in the HD DVD-ROM format.
/// Windows Vista with SP1 and later.
SIID_MEDIAHDDVDROM = 134,
/// High definition DVD-R media in the HD DVD-R format.
/// Windows Vista with SP1 and later.
SIID_MEDIAHDDVDR = 135,
/// High definition DVD-RAM media in the HD DVD-RAM format.
/// Windows Vista with SP1 and later.
SIID_MEDIAHDDVDRAM = 136,
/// High definition DVD-ROM media in the Blu-ray Disc BD-ROM format.
/// Windows Vista with SP1 and later.
SIID_MEDIABDROM = 137,
/// High definition write-once media in the Blu-ray Disc BD-R format.
/// Windows Vista with SP1 and later.
SIID_MEDIABDR = 138,
/// High definition read/write media in the Blu-ray Disc BD-RE format.
/// Windows Vista with SP1 and later.
SIID_MEDIABDRE = 139,
/// A cluster disk array.
/// Windows Vista with SP1 and later.
SIID_CLUSTEREDDRIVE = 140,
/// The highest valid value in the enumeration.
/// Values over 160 are Windows 7-only icons.
SIID_MAX_ICONS = 175
}
[Flags]
public enum SHGSI : uint
{
/// The szPath and iIcon members of the SHSTOCKICONINFO structure receive the path and icon index of the requested icon, in a format suitable for passing to the ExtractIcon function. The numerical value of this flag is zero, so you always get the icon location regardless of other flags.
SHGSI_ICONLOCATION = 0,
/// The hIcon member of the SHSTOCKICONINFO structure receives a handle to the specified icon.
SHGSI_ICON = 0x000000100,
/// The iSysImageImage member of the SHSTOCKICONINFO structure receives the index of the specified icon in the system imagelist.
SHGSI_SYSICONINDEX = 0x000004000,
/// Modifies the SHGSI_ICON value by causing the function to add the link overlay to the file's icon.
SHGSI_LINKOVERLAY = 0x000008000,
/// Modifies the SHGSI_ICON value by causing the function to blend the icon with the system highlight color.
SHGSI_SELECTED = 0x000010000,
/// Modifies the SHGSI_ICON value by causing the function to retrieve the large version of the icon, as specified by the SM_CXICON and SM_CYICON system metrics.
SHGSI_LARGEICON = 0x000000000,
/// Modifies the SHGSI_ICON value by causing the function to retrieve the small version of the icon, as specified by the SM_CXSMICON and SM_CYSMICON system metrics.
SHGSI_SMALLICON = 0x000000001,
/// Modifies the SHGSI_LARGEICON or SHGSI_SMALLICON values by causing the function to retrieve the Shell-sized icons rather than the sizes specified by the system metrics.
SHGSI_SHELLICONSIZE = 0x000000004
}
[StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct SHSTOCKICONINFO
{
public UInt32 cbSize;
public IntPtr hIcon;
public Int32 iSysIconIndex;
public Int32 iIcon;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = UACIcon.MAX_PATH)]
public string szPath;
}说明：
SHSTOCKICONID这里实际只需要定义SIID_SHIELD这一个值就行了，我这里全部贴出来了，以后需要用到的时候可以直接到这里复制了。
定义UACIcon的类，在这个类里封装获取UAC图标的方法
public class UACIcon
{
public const int MAX_PATH = 260;
[DllImport("Shell32.dll", SetLastError = false)]
public static extern Int32 SHGetStockIconInfo(SHSTOCKICONID siid, SHGSI uFlags, ref SHSTOCKICONINFO psii);
[DllImport("user32.dll", SetLastError = true)]
static extern bool DestroyIcon(IntPtr hIcon);
public static BitmapSource GetUACIcon()
{
BitmapSource shieldSource = null;
SHSTOCKICONINFO sii = new SHSTOCKICONINFO();
sii.cbSize = (UInt32)Marshal.SizeOf(typeof(SHSTOCKICONINFO));
Marshal.ThrowExceptionForHR(SHGetStockIconInfo(SHSTOCKICONID.SIID_SHIELD,
SHGSI.SHGSI_ICON | SHGSI.SHGSI_LARGEICON,
ref sii));
shieldSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(
sii.hIcon,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
DestroyIcon(sii.hIcon);
return shieldSource;
}
}上面的代码中包含了从句柄创建WPF ImageSource的代码，如果对这一块不了解的话，可以参考
Imaging.CreateBitmapSourceFromHIcon Method (System.Windows.Interop) | Microsoft Learn
界面XAML如下：
加载图标
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.img_Icon.Source = UACIcon.GetUACIcon();
}
}运行效果：
示例代码
参考资料：
获取系统图标
https://www.cnblogs.com/zhaotianff/p/17662167.html
SHGetStockIconInfo函数P/Invoke签名
pinvoke.net:SHGetStockIconInfo (shell32)