2 references to IsChild
System.Windows.Forms (2)
winforms\Managed\System\WinForms\UserControl.cs (1)
296
if (hwnd == hwndFocus || SafeNativeMethods.
IsChild
(new HandleRef(this, hwnd), new HandleRef(null, hwndFocus)))
winforms\Managed\System\WinForms\WebBrowser.cs (1)
1203
&& SafeNativeMethods.
IsChild
(new HandleRef(this, this.Handle), new HandleRef(null, hwndFocus));