AGS.Editor.SpriteSelector.ReplaceSpritesFromSource C# (CSharp) Метод

        private void ReplaceSpritesFromSource()
        {
            List<Sprite> sprites = new List<Sprite>();
            foreach (ListViewItem listItem in spriteList.SelectedItems) //Check sources still exist
            {
                Sprite spr = FindSpriteByNumber(Convert.ToInt32(listItem.Name.ToString()));
                if (String.IsNullOrEmpty(spr.SourceFile))
                {
                    Factory.GUIController.ShowMessage(String.Format("Sprite {0} does not have a source file. It may have been tile imported.", listItem.Name.ToString()), MessageBoxIcon.Error);
                    return;
                }
                else if (!File.Exists(spr.SourceFile))
                {
                    Factory.GUIController.ShowMessage(String.Format("File {0} does not exist.", spr.SourceFile), MessageBoxIcon.Error);
                    return;
                }
                sprites.Add(spr);
            }
            foreach (Sprite spr in sprites)
            {
                try
                {
                    Bitmap bmp = LoadSpriteFileFromDisk(spr.SourceFile);
                    bool alphaChannel = false;
                    if ((bmp.PixelFormat == PixelFormat.Format32bppArgb) && (Factory.AGSEditor.CurrentGame.Settings.ColorDepth == GameColorDepth.TrueColor))
                    {
                        alphaChannel = true;
                    }
                    NativeProxy.Instance.ReplaceSpriteWithBitmap(spr, bmp, (SpriteImportMethod)SpriteImportWindow.SpriteImportMethod, false, false, alphaChannel);
                    bmp.Dispose();
                }
                catch (Exception ex)
                {
                    Factory.GUIController.ShowMessage(String.Format("There was an error importing the file, {0}. The error message was: '{1}' Please try again", spr.SourceFile, ex.Message), MessageBoxIcon.Warning);
                    RefreshSpriteDisplay();
                    return;
                }
            }
            RefreshSpriteDisplay();
            Factory.GUIController.ShowMessage("Import complete!", MessageBoxIcon.Information);
        }