private void untilerToolStripMenuItem_Click(object sender, EventArgs e) { OpenFileDialog fd = new OpenFileDialog(); fd.Filter = "All PNG Files|*.png"; if (fd.ShowDialog() != DialogResult.OK) { return; } var Bitmap = Image.FromFile(fd.FileName) as Bitmap; var Rst = TEX.Untile(Bitmap); Rst.Save(fd.FileName + "_untiled.png", ImageFormat.Png); MessageBox.Show("Texture Untiled"); }