BrightnessTray.DrawIcon.updateNotifyIcon C# (CSharp) Метод

        public static void updateNotifyIcon(NotifyIcon notifyIcon, int percentage)
        {
            if (notifyIcon == null)
            {
                return;
            }

            if (Config.showTextIcon == false)
            {
                // draw an icon instead of text
                Stream iconstream = System.Windows.Application.GetResourceStream(new Uri("pack://application:,,,/BrightnessTray;component/res/sun.ico")).Stream;
                notifyIcon.Icon = new System.Drawing.Icon(iconstream, System.Windows.Forms.SystemInformation.SmallIconSize);
                iconstream.Close();
                return;
            }

            string drawMe = percentage.ToString();
            Font fontToUse;
            Brush brushToUse = new SolidBrush(Color.White);
            Rectangle rect;
            Bitmap bitmapText;
            Graphics g;
            IntPtr hIcon;

            // draw correct icon size (prevents antialiasing due to dpi)
            int requestedSize = NativeMethods.GetSystemMetrics(NativeMethods.SystemMetric.SM_CXSMICON);

            if (requestedSize > 16)
            {
                //32x32

                if (percentage == 100)
                {
                    // reduce size to fit "100"
                    fontToUse = new Font("Tahoma", 20, FontStyle.Regular, GraphicsUnit.Pixel);
                }
                else
                {
                    fontToUse = new Font("Tahoma", 24, FontStyle.Regular, GraphicsUnit.Pixel);
                }

                rect = new Rectangle(-6, 2, 42, 32);
                bitmapText = new Bitmap(32, 32);

            } else
            {
                //16x16

                if (percentage == 100)
                {
                    // reduce size to fit "100"
                    fontToUse = new Font("Tahoma", 9, FontStyle.Regular, GraphicsUnit.Pixel);
                }
                else
                {
                    fontToUse = new Font("Tahoma", 12, FontStyle.Regular, GraphicsUnit.Pixel);
                }

                rect = new Rectangle(-2, 1, 20, 16);
                bitmapText = new Bitmap(16, 16);

            }

            g = Graphics.FromImage(bitmapText);
            g.Clear(Color.Transparent);
            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixelGridFit;
            StringFormat sf = new StringFormat();
            sf.Alignment = StringAlignment.Center;
            sf.LineAlignment = StringAlignment.Center;
            g.DrawString(drawMe, fontToUse, brushToUse, rect, sf);

            hIcon = (bitmapText.GetHicon());

            notifyIcon.Icon = System.Drawing.Icon.FromHandle(hIcon);
            notifyIcon.Text = "Brightness " + percentage.ToString() + "%";
        }

        private void UpdateUI(int brightnessValue)
        {
            this.Dispatcher.BeginInvoke((Action)(() =>
            {
                // 0 <= value <= 100

                ignoreValueChanged = true;
                this.BrightnessSlider.Value = brightnessValue;
                ignoreValueChanged = false;
                this.percentageLabel.Content = brightnessValue.ToString() + "%";
                DrawIcon.updateNotifyIcon(NotifyIcon, brightnessValue);
            }));
        }