private void exportGFXToolStripMenuItem_Click(object sender, EventArgs e) { SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "GFX XeEngine texture|*.GFX"; saveFileDialog.AddExtension = true; saveFileDialog.DefaultExt = "GFX"; if (saveFileDialog.ShowDialog() == DialogResult.OK) { gfx.Save(saveFileDialog.FileName, ref bmp); } }