利用Visual C++实现系统托盘程序(3)

本文介绍如何在Visual C++中实现系统托盘程序,通过CTrayIcon类处理右键点击和双击事件,展示上下文菜单。文章包含CTrayIcon::OnTrayNotification方法的详细实现,用于响应托盘图标的各种通知。

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导读:
  LRESULT CTrayIcon::OnTrayNotification(WPARAM wID, LPARAM lEvent)
  {
  if (wID!=m_nid.uID    (lEvent!=WM_RBUTTONUP &&lEvent!=WM_LBUTTONDBLCLK))
  return 0;
  CMenu menu;//装载上下文菜单;
  if (!menu.LoadMenu(m_nid.uID))
  return 0;
  CMenu* pSubMenu = menu.GetSubMenu(0);
  if (!pSubMenu)
  return 0;
  if (lEvent==WM_RBUTTONUP) {//设置第一个菜单项为默认菜单项目
  ::SetMenuDefaultItem(pSubMenu->m_hMenu, 0, TRUE);
  //将当前菜单作为上下文菜单;
  CPoint mouse;
  GetCursorPos(&mouse);
  ::SetForegroundWindow(m_nid.hWnd);
  ::TrackPopupMenu(pSubMenu->m_hMenu, 0, mouse.x, mouse.y, 0,m_nid.hWnd, NULL);
  } else // double click: execute first menu item
  ::SendMessage(m_nid.hWnd, WM_COMMAND, pSubMenu->GetMenuItemID(0), 0);
  return 1;
  }
  ///////////////////////////////// MainFrm.h : interface of the CMainFrame class
  #if !defined(AFX_MAINFRM_H__9ED70A69_C975_4F20_9D4E_B2877E3575D0__INCLUDED_)
  #define AFX_MAINFRM_H__9ED70A69_C975_4F20_9D4E_B2877E3575D0__INCLUDED_
  #if _MSC_VER >1000
  #pragma once
  #endif // _MSC_VER >1000
  #include "trayicon.h"
  class CMainFrame : public CFrameWnd
  {
  public:
  CMainFrame();
  protected:
  DECLARE_DYNAMIC(CMainFrame)
  // Attributes
  public:
  // Overrides
  // ClassWizard generated virtual function overrides
  //{{AFX_VIRTUAL(CMainFrame)
  //}}AFX_VIRTUAL
  // Implementation
  public:
  virtual ~CMainFrame();
  #ifdef _DEBUG
  virtual void AssertValid() const;
  virtual void Dump(CDumpContext& dc) const;
  #endif
  protected: // control bar embedded members
  CStatusBar m_wndStatusBar;
  CTrayIcon m_trayIcon; // my tray icon
  CEdit m_wndEdit; // to display tray notifications
  int m_iWhichIcon; // which HICON to use
  BOOL m_bShutdown; // OK to terminate TRAYTEST
  BOOL m_bShowTrayNotifications; // display info in main window
  // Generated message map functions
  protected:
  //{{AFX_MSG(CMainFrame)
  afx_msg LRESULT OnTrayNotification(WPARAM wp, LPARAM lp);
  afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
  afx_msg void OnToggleIcon();
  afx_msg void OnViewClear();
  afx_msg void OnViewNotifications();
  afx_msg void OnUpdateViewClear(CCmdUI* pCmdUI);
  afx_msg void OnUpdateViewNotifications(CCmdUI* pCmdUI);
  afx_msg void OnClose();
  afx_msg void OnAppOpen();
  afx_msg void OnAppSuspend();
  // NOTE - the ClassWizard will add and remove member functions here.
  // DO NOT EDIT what you see in these blocks of generated code!
  //}}AFX_MSG
  DECLARE_MESSAGE_MAP()
  };
  ///////////////////////////////////////////////CMainFrm.cpp
  #include "stdafx.h"
  #include "TrayTest.h"
  #include "MainFrm.h"
  #ifdef _DEBUG
  #define new DEBUG_NEW
  #undef THIS_FILE
  static char THIS_FILE[] = __FILE__;
  #endif

本文转自
http://tech.163.com/06/0628/09/2KMPTBE40009159Q_3.html
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