private void blackAndWhiteToolStripMenuItem_Click(object sender, EventArgs e) { if (checkOriginalPhoto()) { imageProcessing.editedBitmap = null; filterNameTextBox.Text = blackAndWhiteToolStripMenuItem.Text; imageProcessing.editedBitmap = BlackAndWhite.Edit(imageProcessing.originalBitmap); if (imageProcessing.editedBitmap != null) { editedPhoto.Image = (Image)imageProcessing.editedBitmap; } } }