private void rebuildFromTilesToolStripMenuItem_Click(object sender, EventArgs e) { if (rebuildTilesForm == null || !rebuildTilesForm.Visible) { rebuildTilesForm = new ImageForm { Text = "Rebuild From Tiles", MdiParent = this }; } rebuildTilesForm.SetImage(new Bitmap(20 * Model.GridWidth, 12 * Model.GridHeight)); rebuildTilesForm.Show(); Exporter.RebuildFromTiles(rebuildTilesForm.SetPixel); rebuildTilesForm.Invalidate(true); rebuildTilesForm.Update(); }