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
定义SHGetStockIconInfo函数用到的数据结构
1 public enum SHSTOCKICONID : uint 2 { 3 /// <summary>Document of a type with no associated application.</summary> 4 SIID_DOCNOASSOC = 0, 5 /// <summary>Document of a type with an associated application.</summary> 6 SIID_DOCASSOC = 1, 7 /// <summary>Generic application with no custom icon.</summary> 8 SIID_APPLICATION = 2, 9 /// <summary>Folder (generic, unspecified state).</summary> 10 SIID_FOLDER = 3, 11 /// <summary>Folder (open).</summary> 12 SIID_FOLDEROPEN = 4, 13 /// <summary>5.25-inch disk drive.</summary> 14 SIID_DRIVE525 = 5, 15 /// <summary>3.5-inch disk drive.</summary> 16 SIID_DRIVE35 = 6, 17 /// <summary>Removable drive.</summary> 18 SIID_DRIVEREMOVE = 7, 19 /// <summary>Fixed drive (hard disk).</summary> 20 SIID_DRIVEFIXED = 8, 21 /// <summary>Network drive (connected).</summary> 22 SIID_DRIVENET = 9, 23 /// <summary>Network drive (disconnected).</summary> 24 SIID_DRIVENETDISABLED = 10, 25 /// <summary>CD drive.</summary> 26 SIID_DRIVECD = 11, 27 /// <summary>RAM disk drive.</summary> 28 SIID_DRIVERAM = 12, 29 /// <summary>The entire network.</summary> 30 SIID_WORLD = 13, 31 /// <summary>A computer on the network.</summary> 32 SIID_SERVER = 15, 33 /// <summary>A local printer or print destination.</summary> 34 SIID_PRINTER = 16, 35 /// <summary>The Network virtual folder (FOLDERID_NetworkFolder/CSIDL_NETWORK).</summary> 36 SIID_MYNETWORK = 17, 37 /// <summary>The Search feature.</summary> 38 SIID_FIND = 22, 39 /// <summary>The Help and Support feature.</summary> 40 SIID_HELP = 23, 41 /// <summary>Overlay for a shared item.</summary> 42 SIID_SHARE = 28, 43 /// <summary>Overlay for a shortcut.</summary> 44 SIID_LINK = 29, 45 /// <summary>Overlay for items that are expected to be slow to access.</summary> 46 SIID_SLOWFILE = 30, 47 /// <summary>The Recycle Bin (empty).</summary> 48 SIID_RECYCLER = 31, 49 /// <summary>The Recycle Bin (not empty).</summary> 50 SIID_RECYCLERFULL = 32, 51 /// <summary>Audio CD media.</summary> 52 SIID_MEDIACDAUDIO = 40, 53 /// <summary>Security lock.</summary> 54 SIID_LOCK = 47, 55 /// <summary>A virtual folder that contains the results of a search.</summary> 56 SIID_AUTOLIST = 49, 57 /// <summary>A network printer.</summary> 58 SIID_PRINTERNET = 50, 59 /// <summary>A server shared on a network.</summary> 60 SIID_SERVERSHARE = 51, 61 /// <summary>A local fax printer.</summary> 62 SIID_PRINTERFAX = 52, 63 /// <summary>A network fax printer.</summary> 64 SIID_PRINTERFAXNET = 53, 65 /// <summary>A file that receives the output of a Print to file operation.</summary> 66 SIID_PRINTERFILE = 54, 67 /// <summary>A category that results from a Stack by command to organize the contents of a folder.</summary> 68 SIID_STACK = 55, 69 /// <summary>Super Video CD (SVCD) media.</summary> 70 SIID_MEDIASVCD = 56, 71 /// <summary>A folder that contains only subfolders as child items.</summary> 72 SIID_STUFFEDFOLDER = 57, 73 /// <summary>Unknown drive type.</summary> 74 SIID_DRIVEUNKNOWN = 58, 75 /// <summary>DVD drive.</summary> 76 SIID_DRIVEDVD = 59, 77 /// <summary>DVD media.</summary> 78 SIID_MEDIADVD = 60, 79 /// <summary>DVD-RAM media.</summary> 80 SIID_MEDIADVDRAM = 61, 81 /// <summary>DVD-RW media.</summary> 82 SIID_MEDIADVDRW = 62, 83 /// <summary>DVD-R media.</summary> 84 SIID_MEDIADVDR = 63, 85 /// <summary>DVD-ROM media.</summary> 86 SIID_MEDIADVDROM = 64, 87 /// <summary>CD+ (enhanced audio CD) media.</summary> 88 SIID_MEDIACDAUDIOPLUS = 65, 89 /// <summary>CD-RW media.</summary> 90 SIID_MEDIACDRW = 66, 91 /// <summary>CD-R media.</summary> 92 SIID_MEDIACDR = 67, 93 /// <summary>A writable CD in the process of being burned.</summary> 94 SIID_MEDIACDBURN = 68, 95 /// <summary>Blank writable CD media.</summary> 96 SIID_MEDIABLANKCD = 69, 97 /// <summary>CD-ROM media.</summary> 98 SIID_MEDIACDROM = 70, 99 /// <summary>An audio file.</summary> 100 SIID_AUDIOFILES = 71, 101 /// <summary>An image file.</summary> 102 SIID_IMAGEFILES = 72, 103 /// <summary>A video file.</summary> 104 SIID_VIDEOFILES = 73, 105 /// <summary>A mixed file.</summary> 106 SIID_MIXEDFILES = 74, 107 /// <summary>Folder back.</summary> 108 SIID_FOLDERBACK = 75, 109 /// <summary>Folder front.</summary> 110 SIID_FOLDERFRONT = 76, 111 /// <summary>Security shield. Use for UAC prompts only.</summary> 112 SIID_SHIELD = 77, 113 /// <summary>Warning.</summary> 114 SIID_WARNING = 78, 115 /// <summary>Informational.</summary> 116 SIID_INFO = 79, 117 /// <summary>Error.</summary> 118 SIID_ERROR = 80, 119 /// <summary>Key.</summary> 120 SIID_KEY = 81, 121 /// <summary>Software.</summary> 122 SIID_SOFTWARE = 82, 123 /// <summary>A UI item, such as a button, that issues a rename command.</summary> 124 SIID_RENAME = 83, 125 /// <summary>A UI item, such as a button, that issues a delete command.</summary> 126 SIID_DELETE = 84, 127 /// <summary>Audio DVD media.</summary> 128 SIID_MEDIAAUDIODVD = 85, 129 /// <summary>Movie DVD media.</summary> 130 SIID_MEDIAMOVIEDVD = 86, 131 /// <summary>Enhanced CD media.</summary> 132 SIID_MEDIAENHANCEDCD = 87, 133 /// <summary>Enhanced DVD media.</summary> 134 SIID_MEDIAENHANCEDDVD = 88, 135 /// <summary>High definition DVD media in the HD DVD format.</summary> 136 SIID_MEDIAHDDVD = 89, 137 /// <summary>High definition DVD media in the Blu-ray Disc™ format.</summary> 138 SIID_MEDIABLURAY = 90, 139 /// <summary>Video CD (VCD) media.</summary> 140 SIID_MEDIAVCD = 91, 141 /// <summary>DVD+R media.</summary> 142 SIID_MEDIADVDPLUSR = 92, 143 /// <summary>DVD+RW media.</summary> 144 SIID_MEDIADVDPLUSRW = 93, 145 /// <summary>A desktop computer.</summary> 146 SIID_DESKTOPPC = 94, 147 /// <summary>A mobile computer (laptop).</summary> 148 SIID_MOBILEPC = 95, 149 /// <summary>The User Accounts Control Panel item.</summary> 150 SIID_USERS = 96, 151 /// <summary>Smart media.</summary> 152 SIID_MEDIASMARTMEDIA = 97, 153 /// <summary>CompactFlash media.</summary> 154 SIID_MEDIACOMPACTFLASH = 98, 155 /// <summary>A cell phone.</summary> 156 SIID_DEVICECELLPHONE = 99, 157 /// <summary>A digital camera.</summary> 158 SIID_DEVICECAMERA = 100, 159 /// <summary>A digital video camera.</summary> 160 SIID_DEVICEVIDEOCAMERA = 101, 161 /// <summary>An audio player.</summary> 162 SIID_DEVICEAUDIOPLAYER = 102, 163 /// <summary>Connect to network.</summary> 164 SIID_NETWORKCONNECT = 103, 165 /// <summary>The Network and Internet Control Panel item.</summary> 166 SIID_INTERNET = 104, 167 /// <summary>A compressed file with a .zip file name extension.</summary> 168 SIID_ZIPFILE = 105, 169 /// <summary>The Additional Options Control Panel item.</summary> 170 SIID_SETTINGS = 106, 171 /// <summary>High definition DVD drive (any type - HD DVD-ROM, HD DVD-R, HD-DVD-RAM) that uses the HD DVD format.</summary> 172 /// <remarks>Windows Vista with SP1 and later.</remarks> 173 SIID_DRIVEHDDVD = 132, 174 /// <summary>High definition DVD drive (any type - BD-ROM, BD-R, BD-RE) that uses the Blu-ray Disc format.</summary> 175 /// <remarks>Windows Vista with SP1 and later.</remarks> 176 SIID_DRIVEBD = 133, 177 /// <summary>High definition DVD-ROM media in the HD DVD-ROM format.</summary> 178 /// <remarks>Windows Vista with SP1 and later.</remarks> 179 SIID_MEDIAHDDVDROM = 134, 180 /// <summary>High definition DVD-R media in the HD DVD-R format.</summary> 181 /// <remarks>Windows Vista with SP1 and later.</remarks> 182 SIID_MEDIAHDDVDR = 135, 183 /// <summary>High definition DVD-RAM media in the HD DVD-RAM format.</summary> 184 /// <remarks>Windows Vista with SP1 and later.</remarks> 185 SIID_MEDIAHDDVDRAM = 136, 186 /// <summary>High definition DVD-ROM media in the Blu-ray Disc BD-ROM format.</summary> 187 /// <remarks>Windows Vista with SP1 and later.</remarks> 188 SIID_MEDIABDROM = 137, 189 /// <summary>High definition write-once media in the Blu-ray Disc BD-R format.</summary> 190 /// <remarks>Windows Vista with SP1 and later.</remarks> 191 SIID_MEDIABDR = 138, 192 /// <summary>High definition read/write media in the Blu-ray Disc BD-RE format.</summary> 193 /// <remarks>Windows Vista with SP1 and later.</remarks> 194 SIID_MEDIABDRE = 139, 195 /// <summary>A cluster disk array.</summary> 196 /// <remarks>Windows Vista with SP1 and later.</remarks> 197 SIID_CLUSTEREDDRIVE = 140, 198 /// <summary>The highest valid value in the enumeration.</summary> 199 /// <remarks>Values over 160 are Windows 7-only icons.</remarks> 200 SIID_MAX_ICONS = 175 201 } 202 203 [Flags] 204 public enum SHGSI : uint 205 { 206 /// <summary>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.</summary> 207 SHGSI_ICONLOCATION = 0, 208 /// <summary>The hIcon member of the SHSTOCKICONINFO structure receives a handle to the specified icon.</summary> 209 SHGSI_ICON = 0x000000100, 210 /// <summary>The iSysImageImage member of the SHSTOCKICONINFO structure receives the index of the specified icon in the system imagelist.</summary> 211 SHGSI_SYSICONINDEX = 0x000004000, 212 /// <summary>Modifies the SHGSI_ICON value by causing the function to add the link overlay to the file's icon.</summary> 213 SHGSI_LINKOVERLAY = 0x000008000, 214 /// <summary>Modifies the SHGSI_ICON value by causing the function to blend the icon with the system highlight color.</summary> 215 SHGSI_SELECTED = 0x000010000, 216 /// <summary>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.</summary> 217 SHGSI_LARGEICON = 0x000000000, 218 /// <summary>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.</summary> 219 SHGSI_SMALLICON = 0x000000001, 220 /// <summary>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.</summary> 221 SHGSI_SHELLICONSIZE = 0x000000004 222 } 223 224 [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 225 public struct SHSTOCKICONINFO 226 { 227 public UInt32 cbSize; 228 public IntPtr hIcon; 229 public Int32 iSysIconIndex; 230 public Int32 iIcon; 231 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = UACIcon.MAX_PATH)] 232 public string szPath; 233 }
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
1 public class UACIcon 2 { 3 public const int MAX_PATH = 260; 4 5 [DllImport("Shell32.dll", SetLastError = false)] 6 public static extern Int32 SHGetStockIconInfo(SHSTOCKICONID siid, SHGSI uFlags, ref SHSTOCKICONINFO psii); 7 8 [DllImport("user32.dll", SetLastError = true)] 9 static extern bool DestroyIcon(IntPtr hIcon); 10 11 public static BitmapSource GetUACIcon() 12 { 13 BitmapSource shieldSource = null; 14 15 SHSTOCKICONINFO sii = new SHSTOCKICONINFO(); 16 sii.cbSize = (UInt32)Marshal.SizeOf(typeof(SHSTOCKICONINFO)); 17 18 Marshal.ThrowExceptionForHR(SHGetStockIconInfo(SHSTOCKICONID.SIID_SHIELD, 19 SHGSI.SHGSI_ICON | SHGSI.SHGSI_LARGEICON, 20 ref sii)); 21 22 shieldSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon( 23 sii.hIcon, 24 Int32Rect.Empty, 25 BitmapSizeOptions.FromEmptyOptions()); 26 27 DestroyIcon(sii.hIcon); 28 return shieldSource; 29 } 30 }
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
界面XAML如下：
1 <Grid> 2 <Button Width="74" Height="28"> 3 <Button.Content> 4 <Grid> 5 <Grid.ColumnDefinitions> 6 <ColumnDefinition Width="32"/> 7 <ColumnDefinition/> 8 </Grid.ColumnDefinitions> 9 10 <Image Stretch="Uniform" x:Name="img_Icon" Width="18" Height="18" HorizontalAlignment="Right"/> 11 <Label Content="确认" Grid.Column="1" HorizontalAlignment="Left"/> 12 </Grid> 13 </Button.Content> 14 </Button> 15 </Grid>
加载图标
1 public partial class MainWindow : Window 2 { 3 public MainWindow() 4 { 5 InitializeComponent(); 6 7 this.img_Icon.Source = UACIcon.GetUACIcon(); 8 } 9 }
运行效果：
参考资料：
https://www.cnblogs.com/zhaotianff/p/17662167.html 获取系统图标
https://pinvoke.net/default.aspx/shell32/SHGetStockIconInfo.html SHGetStockIconInfo函数P/Invoke签名