ImageUtility 1.1.7

using ImageUtility;

        var toolStrip = new ToolStrip() { Parent = this, };
        var toolStripMenuItemLoadImage = new ToolStripMenuItem() { Text = "LoadImage", };
        toolStrip.Items.Add(toolStripMenuItemLoadImage);

        toolStripMenuItemLoadImage.Click += (sender, e) =>
        {
            var ofd = new OpenFileDialog();
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                var ret = ImageViewer.ShowDialog(ofd.FileName, 0.8, true, 65);

                using (var img = ImageHelper.LoadImage(ofd.FileName))
                {
                    ret = ImageViewer.ShowDialog(img, 0.8, ofd.FileName, true, 65);
                }
            }
        };

        var toolStripMenuItemLoadMultipleImages = new ToolStripMenuItem() { Text = "Multiple images", };
        toolStrip.Items.Add(toolStripMenuItemLoadMultipleImages);

        toolStripMenuItemLoadMultipleImages.Click += (sender, e) =>
        {
            var ofd = new OpenFileDialog() { Multiselect = true };

            var r = ofd.ShowDialog();
            if (r == DialogResult.OK)
            {
                List<byte[]> binaryImages = new List<byte[]>();

                foreach (var f in ofd.FileNames)
                {
                    using (System.IO.FileStream fs = new System.IO.FileStream(f, System.IO.FileMode.Open, System.IO.FileAccess.Read))
                    {
                        var data = new byte[fs.Length];
                        fs.Read(data, 0, data.Length);
                        binaryImages.Add(data);
                    }
                }
                ImageViewer.ShowDialog(binaryImages, 0.5, "images", true);
            }
        };

        Action<string> progress = (v) => { Console.WriteLine(v); };
        PictureBoxEx pictureBoxEx = new PictureBoxEx(progress) { OpenMenuVisible = true, Height = 400 };
        Controls.Add(pictureBoxEx.Panel);
        Controls.Add(pictureBoxEx.Menu);