[dllimport("user32.dll", charset = charset.auto, callingconvention = callingconvention.winapi)]
internal static extern intptr getfocus();
///获取 当前拥有焦点的控件
private control getfocusedcontrol()
{
control focusedcontrol = null;
intptr focusedhandle = getfocus();
if (focusedhandle != intptr.zero)
focusedcontrol = control.fromchildhandle(focusedhandle);
return focusedcontrol;
}
原文连接：
