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[wx] 系统托盘(Tray) ---- wxTaskBarIcon

2010-08-07 11:41:25| 分类： gui_wxWidgets | 标签： |举报 |字号大中小订阅

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系统托盘，哈。

lib: wxmsw28u_adv.lib

---------------------------- MyTray.h -----------------------------

#include <wx/wx.h>

#include <wx/taskbar.h>

class MyTray : public wxTaskBarIcon

{

public:

void OnAbout(wxCommandEvent& event);

protected:

virtual wxMenu *CreatePopupMenu();

private:

DECLARE_EVENT_TABLE();

};

-----------------------------------------------------------------------

#include "MyTray.h"

BEGIN_EVENT_TABLE(MyTray, wxTaskBarIcon)

EVT_MENU(wxID_ABOUT, MyTray::OnAbout)

END_EVENT_TABLE()

wxMenu *MyTray::CreatePopupMenu()

{

// 每次都要 new 一个新的 wxMenu

wxMenu *popupMenu = new wxMenu;

popupMenu->Append(wxID_ABOUT, _("About"));

popupMenu->AppendSeparator();

popupMenu->Append(wxID_EXIT, _("Exit"));

return popupMenu;

}

void MyTray::OnAbout(wxCommandEvent& event)

{

wxMessageBox(_T("hello!"), wxT("About Tray!"), wxOK | wxICON_INFORMATION);

}

------------------------ MyFrame.cpp --------------------------

MyFrame::MyFrame(const wxString &title) : wxFrame(NULL, wxID_ANY, title)

{

....

m_Tray = new MyTray();

m_Tray->SetIcon(wxIcon(cut_xpm), _("Hello Tray!"));

}

MyFrame::~MyFrame()

{

if ( m_Tray )

delete m_Tray;

}

-----------------------------------------------------------------------

使用 wxTaskBarIcon 的退出流程

1. 在 wxTaskBarIcon 上点'退出'，调用 m_pMainFrame->Close()

2. MainFrame 收到消息，最后调用自己的 wxFrame::Destroy()

3. 进入析构函数，delete m_pTray，通过 wxTaskBarIcon::~wxTaskBarIcon() 完成退出流程

因为在 win32 下，wxTaskBarIcon 后面隐含着一个 TopLevelWindow，而此 TopLevelWindow 不退出，app 也是不会退出的。

http://kasicass.blog.163.com/blog/static/395619201071093547410/

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