卡油裡

敬告遊客：
以下內容枯燥無聊，若情非得已不建議進入。
若仍執意進入，當有頭暈嘔吐現象時請盡速離開本篇文章。


menu.h
#include
#include

class menu : public QWidget
{
Q_OBJECT

public:
menu(QWidget *parent = 0);
private:
QAction *minimizeAction;
QAction *restoreAction;
QAction *quitAction;
QMenu *m_contextMenu;
void create_contextmenu();
}


menu.cpp

#include "tmenu.h"

#include
#include
#include
#include

menu::menu(QWidget *parent)
: QWidget(parent)
{
create_contextmenu();
}

void menu::create_contextmenu()
{
minimizeAction = new QAction(tr("Mi&nimize"), this);
connect(minimizeAction, SIGNAL(triggered()), this, SLOT(showMinimized()));
restoreAction = new QAction(tr("&Restore"), this);
connect(restoreAction, SIGNAL(triggered()), this, SLOT(showNormal()));

quitAction = new QAction(tr("&Quit"), this);
connect(quitAction, SIGNAL(triggered()), this, SLOT(close_app()));

m_contextMenu = new QMenu(this);
m_contextMenu->addAction(minimizeAction);
m_contextMenu->addAction(restoreAction);
m_contextMenu->addSeparator();
m_contextMenu->addAction(quitAction);
}


bool menu::winEvent ( MSG * msg, long * result )
{
int msgType = msg->message;
if (msgType == 0x0313 )//(msgType == 787 )//787 only triggered in XP, 7 doesn't have this event.
{
qDebug() << "Show Context menu;
minimizeAction->setEnabled(!isMinimized());
restoreAction->setEnabled(true);
quitAction->setEnabled(true);
QPoint gpos = QCursor::pos();
m_contextMenu->move(gpos.x(), gpos.y() - m_contextMenu->height());
m_contextMenu->show();
}
return false;
}



Ref:
http://nicug.blogspot.com/search/label/taskbar
http://qtexperience.blogspot.com/2010/07/taskbar-context-menu-for-framless.html