C# Bitmap.GetHicon方法代碼示例

        public static Icon Create(Bitmap bm)
        {
            bm.MakeTransparent(Color.White);
            IntPtr ich = bm.GetHicon();

            return Icon.FromHandle(ich);
        }

        /// <summary>
        ///     カーソルを作成する
        /// </summary>
        /// <param name="bitmap">カーソル畫像</param>
        /// <param name="xHotSpot">ホットスポットのX座標</param>
        /// <param name="yHotSpot">ホットスポットのY座標</param>
        /// <returns>作成したカーソル</returns>
        public static Cursor CreateCursor(Bitmap bitmap, int xHotSpot, int yHotSpot)
        {
            Bitmap andMask = new Bitmap(bitmap.Width, bitmap.Height);
            Bitmap xorMask = new Bitmap(bitmap.Width, bitmap.Height);
            Color transparent = bitmap.GetPixel(bitmap.Width - 1, bitmap.Height - 1);
            for (int x = 0; x < bitmap.Width; x++)
            {
                for (int y = 0; y < bitmap.Height; y++)
                {
                    Color pixel = bitmap.GetPixel(x, y);
                    if (pixel == transparent)
                    {
                        andMask.SetPixel(x, y, Color.White);
                        xorMask.SetPixel(x, y, Color.Transparent);
                    }
                    else
                    {
                        andMask.SetPixel(x, y, Color.Black);
                        xorMask.SetPixel(x, y, pixel);
                    }
                }
            }

            IntPtr hIcon = bitmap.GetHicon();
            IconInfo info = new IconInfo();
            NativeMethods.GetIconInfo(hIcon, ref info);
            info.xHotspot = xHotSpot;
            info.yHotspot = yHotSpot;
            info.hbmMask = andMask.GetHbitmap();
            info.hbmColor = xorMask.GetHbitmap();
            info.fIcon = false;
            hIcon = NativeMethods.CreateIconIndirect(ref info);
            return new Cursor(hIcon);
        }

        /***************************************************************
         * Author: Anthony Simmons                                      *
         * Assignment: Homework #4 WSU Apparel      	 				*
         * Course: CptS 422 - Software Testing							*
         * Date: October 7, 2013								        *
         * Function Name: WSU_Apparel_Form()		    			    *
         * Description: Constructs the Main Form UI                     *
         * Preconditions: None											*
         * Postconditions: None			        						*
         ****************************************************************/
        public WSU_Apparel_Form()
        {
            InitializeComponent();

            loadComboBoxes();
            //loadClothes();

            treeViewInventory.CheckBoxes = true;
            dgvInventory.EditMode = DataGridViewEditMode.EditProgrammatically;
            dgvShoppingCart.EditMode = DataGridViewEditMode.EditProgrammatically;

            //inventory.saveInventory("../../Inventory.xml");
            dgvInventory.ForeColor = Color.Maroon;
            dgvShoppingCart.ForeColor = Color.Maroon;

            dgvInventory.BackColor = Color.Gray;
            dgvShoppingCart.BackColor = Color.Gray;

            treeViewInventory.BackColor = Color.Gray;
            treeViewInventory.ForeColor = Color.Maroon;

            inventory.loadInventory("../../Inventory.xml");
            loadDGVInventory();
            loadTreeInventory();
            timer1.Interval = 500;
            timer1.Start();
            Ico = new Bitmap("../../wsu.coug.big.gif");
            //Ico = new Bitmap("../../ofallon.jpg");
            this.Icon = Icon.FromHandle(Ico.GetHicon());

            loadDGVDiscount();
        }

		public static StatusIcon LoadFromFile(string file)
		{
            try
            {
                using (FileStream stream = File.Open(file, FileMode.Open, FileAccess.Read))
                {
                    return new StatusIcon(new Icon(stream), true);
                }
            }
            catch (ArgumentException)
            {
                try
                {
                    // Attempt to load the icon from an image file instead
                    using (FileStream stream = File.Open(file, FileMode.Open, FileAccess.Read))
                    {
                        using (Bitmap image = new Bitmap(stream))
                        {
                            return new StatusIcon(Icon.FromHandle(image.GetHicon()), true);
                        }
                    }
                }
                catch (SystemException ex)
                {
                    throw new IconNotFoundException(file, ex);
                }
            }
            catch (SystemException ex)
            {
                throw new IconNotFoundException(file, ex);
            }
		}

        private void FrmLogin_Load(object sender, EventArgs e)
        {
            Image img = CKGen.Properties.Resources.link;
            Bitmap myBitmap = new Bitmap(img);
            Icon myIcon = Icon.FromHandle(myBitmap.GetHicon());
            this.Icon = myIcon;

            this.bar = new ProgressBar();
            this.bar.Location = new System.Drawing.Point(18, 0);
            this.bar.Size = new System.Drawing.Size(367, 10);
            this.bar.Style = System.Windows.Forms.ProgressBarStyle.Marquee;
            this.bar.Visible = false;
            this.Controls.Add(bar);

            this.cbServerType.DataSource = typeof(DatabaseType).ToList();
            this.cbServerType.DisplayMember = "Value";
            this.cbServerType.ValueMember = "Key";

            this.btnOK.Enabled = false;

            var connList = ConnectionSetting.GetList();
            if (connList != null && connList.Count > 0)
            {
                cbServerName.DataSource = connList;
                cbServerName.DisplayMember = "ServerName";
                cbServerName.ValueMember = "ServerName";

                ShowServer(connList[0].ServerName);
            }

            this.AcceptButton = this.btnLogin;
        }

        public static void CreateJumpListImages(string bniFilePath)
        {
            string jlIconsPath = Path.Combine(Path.GetDirectoryName(bniFilePath), "JumpListIcons");
            if (!Directory.Exists(jlIconsPath))
                Directory.CreateDirectory(jlIconsPath);

            using (BniFileParser bni = new BniFileParser(bniFilePath))
            {
                foreach (BniIcon icon in bni.AllIcons)
                {
                    if (icon.SoftwareProductCodes.Length == 0)
                        continue;

                    string filename = icon.SoftwareProductCodes[0] + ".ico";

                    using (Bitmap result = new Bitmap(32, 32, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
                    using (Graphics g = Graphics.FromImage(result))
                    {
                        g.DrawImage(icon.Image, new Rectangle(0, 6, 32, 20));

                        using (Icon ico = Icon.FromHandle(result.GetHicon()))
                        using (FileStream fs = new FileStream(Path.Combine(jlIconsPath, filename), FileMode.OpenOrCreate, FileAccess.Write, FileShare.None))
                        {
                            ico.Save(fs);
                        }
                    }
                }
            }
        }

		public static Icon CreateIcon(Image image, int size, bool preserveAspectRatio)
		{
			var square = new Bitmap(size, size);
			var g = Graphics.FromImage(square);
			int x, y, w, h;

			if (!preserveAspectRatio || image.Height == image.Width)
			{
				x = y = 0;
				w = h = size;
			}
			else
			{
				var r = image.Width / (float) image.Height;
				if (r > 1)
				{
					w = size;
					h = (int) (size / r);
					x = 0;
					y = (size - h) / 2;
				}
				else
				{
					w = (int) (size * r);
					h = size;
					y = 0;
					x = (size - w) / 2;
				}
			}
			g.InterpolationMode = InterpolationMode.HighQualityBicubic;
			g.DrawImage(image, x, y, w, h);
			g.Flush();

			return Icon.FromHandle(square.GetHicon());
		}

        public void Show()
        {
            if (!isInit) {
                isInit = true;

                using (Bitmap newBmp = new Bitmap(16, 16)) {
                    Graphics g = Graphics.FromImage(newBmp);
                    ColorMap[] colorMap = new ColorMap[1];
                    colorMap[0] = new ColorMap();
                    colorMap[0].OldColor = Color.Fuchsia;
                    colorMap[0].NewColor = Color.FromKnownColor(KnownColor.ButtonFace);
                    ImageAttributes attr = new ImageAttributes();
                    attr.SetRemapTable(colorMap);
                    g.DrawImage(tbBmp_tbTab, new Rectangle(0, 0, 16, 16), 0, 0, 16, 16, GraphicsUnit.Pixel, attr);
                    tbIcon = Icon.FromHandle(newBmp.GetHicon());
                }

                NppTbData _nppTbData = new NppTbData();
                _nppTbData.hClient = this.Handle;
                _nppTbData.pszName = this.FormName();
                _nppTbData.dlgID = id;
                _nppTbData.uMask = FormMask;
                _nppTbData.hIconTab = (uint)tbIcon.Handle;
                _nppTbData.pszModuleName = UnmanagedExports.main.PluginName();
                IntPtr _ptrNppTbData = Marshal.AllocHGlobal(Marshal.SizeOf(_nppTbData));
                Marshal.StructureToPtr(_nppTbData, _ptrNppTbData, false);

                Win32.SendMessage(PluginBase.nppData._nppHandle, NppMsg.NPPM_DMMREGASDCKDLG, 0, _ptrNppTbData);
            } else {
                Win32.SendMessage(PluginBase.nppData._nppHandle, NppMsg.NPPM_DMMSHOW, 0, this.Handle);
            }
        }

        public static void Initialize(dynamic window)
        {
            Bitmap icon;
            using (MemoryStream outStream = new MemoryStream())
            {
                BitmapEncoder enc = new BmpBitmapEncoder();
                enc.Frames.Add(BitmapFrame.Create(new Uri(@"pack://application:,,,/Resources/ImageViewer.ico", UriKind.Absolute)));
                enc.Save(outStream);
                icon = new Bitmap(outStream);
            }

            _notifyIcon = new NotifyIcon
            {
                Icon = System.Drawing.Icon.FromHandle(icon.GetHicon()),
                Visible = true
            };

            var cms = new ContextMenuStrip();
            var tsm = new ToolStripMenuItem {Text = @"Exit"};
            tsm.Click += (sender, e) =>
            {
                Exit();
            };
            cms.Items.Add(tsm);
            _notifyIcon.ContextMenuStrip = cms;

            Window = window;
        }

		public static Icon IconFromBitmap(Bitmap bitmap) {

			IntPtr hIcon = bitmap.GetHicon();
			using(Icon icon = Icon.FromHandle(hIcon)) { // we can use Icon's dispose method because it calls DestroyIcon for us.
				return icon.Clone() as Icon;
			}
		}

        protected override System.Drawing.Icon GetIcon(bool smallIcon, uint iconSize)
        {
            Icon icon = null;

            try
            {
                XPathDocument doc = new XPathDocument(SelectedItemPath);
                XPathNavigator nav = doc.CreateNavigator();
                XPathExpression expr;
                expr = nav.Compile("/material/preview/@value");
                XPathNodeIterator iterator = nav.Select(expr);
                if (iterator.MoveNext())
                {
                    XPathNavigator nav2 = iterator.Current.Clone();
                    var relativepath = nav2.Value;
                    var root = Path.GetDirectoryName(SelectedItemPath);
                    var path = Path.Combine(root, relativepath);
                    Bitmap bitmap = new Bitmap(path);
                    icon = Icon.FromHandle(bitmap.GetHicon());
                }
            }
            catch (Exception)
            {
                icon = null;
            }

            if (icon == null)
            {
                // assign default icon
            }

            // todo
            return GetIconSpecificSize(icon, new Size((int)iconSize, (int)iconSize));
        }

		public static Icon CreateIcon(Bitmap bmp, int size) {
			var hIcon = bmp.GetHicon();
			var icon = Icon.FromHandle(hIcon);
			icon = new Icon(icon, size, size);
			DestroyIcon(hIcon);
			return icon;
		}

        /// <summary>
        /// Asynchronously download the player's skin and set the head as console icon
        /// </summary>

        public static void setPlayerIconAsync(string playerName)
        {
            if (!Program.isUsingMono) //Windows Only
            {
                Thread t = new Thread(new ThreadStart(delegate
                {
                    HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create("http://skins.minecraft.net/MinecraftSkins/" + playerName + ".png");
                    try
                    {
                        using (HttpWebResponse httpWebReponse = (HttpWebResponse)httpWebRequest.GetResponse())
                        {
                            Bitmap skin = new Bitmap(Image.FromStream(httpWebReponse.GetResponseStream())); //Read skin from network
                            skin = skin.Clone(new Rectangle(8, 8, 8, 8), skin.PixelFormat); //Crop skin
                            SetConsoleIcon(skin.GetHicon()); //Set skin as icon
                        }
                    }
                    catch (WebException) //Skin not found? Reset to default icon
                    {
                        try
                        {
                            SetConsoleIcon(Icon.ExtractAssociatedIcon(Application.ExecutablePath).Handle);
                        }
                        catch { }
                    }
                }
                ));
                t.Name = "Player skin icon setter";
                t.Start();
            }
        }

        public void badge(string text)
        {
            if (Utils.IsBlank(text))
            {
                TransferController.Instance.TaskbarOverlayIcon(null, String.Empty);
            }
            else
            {
                using (Bitmap bm = new Bitmap(16, 16))
                using (Graphics g = Graphics.FromImage(bm))
                {
                    g.SmoothingMode = SmoothingMode.AntiAlias;
                    g.FillEllipse(Brushes.Navy, new Rectangle(0, 0, 15, 15));

                    if (text.Length == 1)
                    {
                        Font f = new Font("Segoe UI", 8, FontStyle.Bold);
                        g.DrawString(text, f, new SolidBrush(Color.White), 3, 1);
                    }
                    else
                    {
                        Font f = new Font("Segoe UI", 7, FontStyle.Bold);
                        g.DrawString(text, f, new SolidBrush(Color.White), 1, 1);
                    }
                    TransferController.Instance.TaskbarOverlayIcon(Icon.FromHandle(bm.GetHicon()), text);
                }
            }
        }

 private static Cursor GetEraserCursor()
 {
     Image fn = ImageResources.GetImageByName("eraser_cursor");
     Bitmap bitmap = new Bitmap(fn);
     IntPtr handle = bitmap.GetHicon();
     Cursor myCursor = new Cursor(handle);
     return myCursor;
 }