#include?“appinit.h“
#include?“qapplication.h“
#include?“qevent.h“
#include?“qwidget.h“

AppInit?*AppInit::self?=?0;
AppInit::AppInit（Qobject?*parent）?:?Qobject（parent）
{
}

bool?AppInit::eventFilter（Qobject?*obj?QEvent?*evt）
{
????QWidget?*w?=?（QWidget?*）obj;
????if?（!w->property（“CanMove“）.toBool（））?{
????????return?Qobject::eventFilter（obj?evt）;
????}

????static?QPoint?mousePoint;
????static?bool?mousePressed?=?false;

????QMouseEvent?*event?=?static_cast（evt）;
????if?（event->type（）?==?QEvent::MouseButtonPress）?{
????????if?（event->button（）?==?Qt::LeftButton）?{
????????????mousePressed?=?true;
????????????mousePoint?=?event->globalPos（）?-?w->pos（）;
????????????return?true;
????????}
????}?else?if?（event->type（）?==?QEvent::MouseButtonRelease）?{
????????mousePressed?=?false;
????????return?true;
????}?else?if?（event->type（）?==?QEvent::MouseMove）?{
????????if?（mousePressed?&&?（event->buttons（）?&&?Qt::LeftButton））?{
????????????w->move（event->globalPos（）?-?mousePoint）;
????????????return?true;
????????}
????}

????return?Qobject::eventFilter（obj?evt）;
}

void?AppInit::start（）
{
????qApp->installEventFilter（this）;
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-04-02?11:44??maskdemo\
?????文件?????????374??2018-04-01?11:36??maskdemo\widget.h
?????文件?????????776??2018-04-02?11:43??maskdemo\widget.cpp
?????文件?????????979??2018-04-02?11:43??maskdemo\maskwidget.h
?????文件?????????344??2018-04-02?11:43??maskdemo\frm1.cpp
?????文件?????????313??2016-12-29?08:52??maskdemo\frm1.h
?????文件????????1298??2016-12-29?09:03??maskdemo\frm1.ui
?????文件????????1525??2016-12-27?12:47??maskdemo\maskwidget.cpp
?????文件?????????456??2018-04-01?12:41??maskdemo\maskdemo.pro
?????文件????????1539??2018-04-01?11:36??maskdemo\widget.ui
?????文件?????????205??2018-04-02?11:43??maskdemo\main.cpp
?????文件????????1198??2016-12-29?08:57??maskdemo\appinit.cpp
?????文件?????????612??2016-12-13?17:18??maskdemo\appinit.h
?????文件?????????385??2016-12-29?09:01??maskdemo\frm2.cpp
?????文件?????????313??2016-12-29?08:52??maskdemo\frm2.h
?????文件????????1298??2016-12-29?09:03??maskdemo\frm2.ui
?????文件??????169282??2016-12-29?09:06??maskdemo\ScreenGif?.gif
?????文件????????6760??2016-12-27?16:16??maskdemo\screenwidget.cpp
?????文件????????2376??2016-12-29?08:53??maskdemo\screenwidget.h