void Form_Activated(object sender, EventArgs e)
{
// 通知 MessageFilter 鼠标已离开 ， 参考上面 OnMouseEnterEx() 方法里的注释
MouseEventUtil.SetLeave(this);
OnMouseLeaveEx(e);
}
private bool RaiseCommonEvent(ref Message m, Control c)
{
FormEx form = c as FormEx;
ControlEx ctrl = c as ControlEx;
if (form == null && ctrl == null)
{
return(false);
}
EventArgs e;
bool r = false;
switch (m.Msg)
{
case Win32.WM_MOUSEHOVER:
{
e = new EventArgs();
if (form != null)
{
r = form.OnMouseHoverEx(e);
}
else if (ctrl != null)
{
r = ctrl.OnMouseHoverEx(e);
}
// 如果 r == true ， 则返回 true 终止事件冒泡
if (r)
{
return(true);
}
break;
}
case Win32.WM_MOUSELEAVE:
{
// 用于实现 MouseEnter 事件， 参考 MouseMove 消息处理中使用 MouseEventUtil.SetEnter(c) 的部分
MouseEventUtil.SetLeave(c);
e = new EventArgs();
if (form != null)
{
r = form.OnMouseLeaveEx(e);
}
else if (ctrl != null)
{
r = ctrl.OnMouseLeaveEx(e);
}
// 如果 r == true ， 则返回 true 终止事件冒泡
if (r)
{
return(true);
}
break;
}
}
return(false);
}