2 references to UnregisterClass
System.Windows.Forms (2)
winforms\Managed\System\WinForms\NativeWindow.cs (2)
1645if (UnsafeNativeMethods.UnregisterClass(windowClassName, new HandleRef(null, UnsafeNativeMethods.GetModuleHandle(null)))) { 1679if (registered && UnsafeNativeMethods.UnregisterClass(windowClassName, new HandleRef(null, UnsafeNativeMethods.GetModuleHandle(null)))) {