private void Form1_Deactivate(object sender, System.EventArgs e) { // Disable certain buttons and menus } private void Form1_Activated(object sender, System.EventArgs e) { // Enable previously disabled buttons and menus }
private void Window_Deactivated(object sender, System.EventArgs e) { // Pause animations or other operations } private void Window_Activated(object sender, System.EventArgs e) { // Resume previously paused animations or operations }Package library: System.Windows.Forms for Windows Forms applications and System.Windows for WPF applications.