托盘，可以防止EXPLORER 被杀后托盘消失的情况

来源：互联网发布：pop3默认端口号tcp110 编辑：程序博客网时间：2024/06/11 19:51

#define ID_TASKBARICON 100
#define WM_ICONNOTIFY (WM_USER+101)

在类中申明

virtual LRESULT DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) ;

在 CPP中：

BOOL CALLBACK EnumProc( HWND hWnd, LPARAM lParam)
{
static const TCHAR szAfxOldWndProc[] = _T("AfxOldWndProc423"); // Visual C++ 6.0
//check for property and unsubclass if necessary
WNDPROC oldWndProc = (WNDPROC)::GetProp(hWnd, szAfxOldWndProc);
if (oldWndProc!=NULL)
{
SetWindowLong(hWnd, GWL_WNDPROC, (DWORD)oldWndProc);
RemoveProp(hWnd, szAfxOldWndProc);
}

return TRUE;
}

LRESULT CLandunDlg::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
static UINT const WM_TASKBARCREATED = RegisterWindowMessage( _T("TaskbarCreated") );
if( WM_TASKBARCREATED == message ) // Explorer.exe重新启动
{
Shell_NotifyIcon(NIM_ADD, &m_Nid);
return TRUE;
}

// TODO: Add your specialized code here and/or call the base class
switch( message )
{
case WM_ENDSESSION:
  {
  DWORD dwProcessId;
     DWORD dwThreadId= GetWindowThreadProcessId(m_hWnd,&dwProcessId);
  EnumThreadWindows(dwThreadId, EnumProc,(LPARAM) dwThreadId);
  }
  return TRUE;
case WM_SYSCOMMAND:
  switch( wParam )
  {
  // 隐藏
  case SC_MINIMIZE:
  case SC_CLOSE:
   ShowWindow(SW_HIDE);
   return TRUE;
  }
  break;
case WM_ICONNOTIFY:
  switch( lParam )
  {
  case WM_LBUTTONDBLCLK: // 恢复显示
   if( IsWindowVisible() )
   {
    ShowWindow(SW_HIDE);
   }
   else
   {
    ShowWindow(SW_RESTORE);
    SetForegroundWindow();
   }
   return TRUE;
  case WM_RBUTTONUP:  // 显示菜单
   POINT point;
   HMENU hMenu, hSubMenu;
   GetCursorPos(&point);
   hMenu = LoadMenu(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDR_MENU1));
   hSubMenu = GetSubMenu(hMenu, 0);
   SetForegroundWindow();
   SetMenuDefaultItem(hSubMenu, ID_ICON_SHOW, FALSE);
   TrackPopupMenu(hSubMenu,TPM_LEFTBUTTON|TPM_RIGHTBUTTON|TPM_LEFTALIGN,point.x, point.y, 0, this->GetSafeHwnd(), NULL);
   PostMessage(WM_NULL,0,0);
   DestroyMenu(hMenu);
   return TRUE;
  }
  return TRUE;
}

return CDialog::DefWindowProc(message, wParam, lParam);
}

加个 Menu 资源

IDR_MENU1

|_ ID_SHOW

|_ ID_EXIT

// 生成个 ID_SHOW 事件

void CMyDlg::OnShow()
{
// TODO: Add your command handler code here
WindowProc(WM_ICONNOTIFY,0,WM_LBUTTONDBLCLK);

}

// 生成个 ID_EXIT 事件

void CMyDlg::OnExit()
{
// TODO: Add your command handler code here

CDialog::OnClose();
}