//returns the process id and create time for the oldest explorer.exe 
RM_UNIQUE_PROCESS GetExplorerApplication()
{
    RM_UNIQUE_PROCESS  result={0};
    DWORD bytesReturned=0;
    DWORD processIdSize=4096;
    std::vector<DWORD> processIds;
    processIds.resize(1024);
    EnumProcesses(processIds.data(),processIdSize,&bytesReturned);
    while(bytesReturned==processIdSize)
    {
        processIdSize+=processIdSize;
        processIds.resize(processIdSize/4);
        EnumProcesses(processIds.data(),processIdSize,&bytesReturned);
    }

    std::for_each(processIds.begin(), processIds.end(), [&result] (DWORD processId) {
         HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_VM_READ,
                                   FALSE, processId);
         if (hProcess) {
            std::wstring imageName;
            imageName.resize(4096);
            if(GetProcessImageFileName (hProcess,(LPWSTR)imageName.data(),4096)>0)
            {
                if(wcscmp(L"explorer.exe",PathFindFileName(imageName.data()))==0)
                {
                    //this is assmuing the user is not running elevated and won't see explorer processes in other sessions
                    FILETIME ftCreate, ftExit, ftKernel, ftUser;
                    if (GetProcessTimes(hProcess, &ftCreate, &ftExit,&ftKernel, &ftUser))
                    {
                        if(result.dwProcessId==0)
                        {
                            result.dwProcessId=processId;
                            result.ProcessStartTime=ftCreate;
                        }
                        else if(CompareFileTime(&result.ProcessStartTime,&ftCreate)>0)
                        {
                            result.dwProcessId=processId;
                            result.ProcessStartTime=ftCreate;
                        }
                    }
                }
            }
            CloseHandle(hProcess);
         }
    });
    return result;
}
    //taskbar position calculating code omitted
    DWORD dwSession=0;
    WCHAR szSessionKey[CCH_RM_SESSION_KEY+1] = { 0 };
    DWORD dwError = RmStartSession(&dwSession, 0, szSessionKey);
    if (dwError == ERROR_SUCCESS) {
        RM_UNIQUE_PROCESS rgApplications[1]={GetExplorerApplication()};
        dwError=RmRegisterResources(
            dwSession,0,NULL,1,rgApplications,0,NULL);
        DWORD dwReason;
        UINT nProcInfoNeeded;
        UINT nProcInfo = 10;
        RM_PROCESS_INFO rgpi[10];
        dwError = RmGetList(dwSession, &nProcInfoNeeded,
                       &nProcInfo, rgpi, &dwReason);
        if(dwReason==RmRebootReasonNone)//now free to restart explorer
        {
            RmShutdown(dwSession,RmForceShutdown,NULL);//important, if we change the registry before shutting down explorer will override our change
            //using undocumented setting structure, could break any time
            //edge setting is stored at HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2!Settings
            HKEY hKey={0};
            DWORD result=0;
            result=::RegOpenKeyEx(HKEY_CURRENT_USER, _T("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\StuckRects2"),
                    0, KEY_READ|KEY_WRITE, &hKey) ;
            if (result== ERROR_SUCCESS)
            {
                std::vector<BYTE> data;
                data.resize(256);
                TCHAR settingValue[]= _T("Settings");
                DWORD dwKeyDataType=0;
                DWORD dwDataBufSize=data.size();
                result=::RegQueryValueEx(hKey,settingValue, NULL, &dwKeyDataType,
                    (LPBYTE) data.data(), &dwDataBufSize);
                while(ERROR_MORE_DATA==result)
                {
                    data.resize(256+data.size());
                    dwDataBufSize=data.size();
                    result=::RegQueryValueEx(hKey,settingValue, NULL, &dwKeyDataType, 
                        (LPBYTE) data.data(), &dwDataBufSize);
                }
                data.resize(dwDataBufSize);
                if(result==ERROR_SUCCESS)
                {
                    switch ( dwKeyDataType )
                    {
                        case REG_BINARY:
                            if(data.size()==40)
                            {
                                BYTE taskbarPosition=data[12];
                                taskbarPosition=edge;
                                data[12]=taskbarPosition;
                                RECT* taskbarRect=(RECT*)&data[24];
                                CopyRect (taskbarRect,&abd.rc);
                                result=::RegSetValueEx(hKey,settingValue,0,REG_BINARY,(LPBYTE) data.data(), dwDataBufSize);
                            }
                            break;
                    }
                }
                ::RegCloseKey( hKey );
            }
            RmRestart (dwSession,0,NULL);
        }
    }
    RmEndSession(dwSession);

票数 8

Stack Overflow用户

发布于 2013-01-16 16:49:02

您可以通过简单的批处理或脚本来完成此操作。根据屏幕的当前分辨率设置注册表值以定位任务栏(如果在停靠时会更高)，然后重新启动explorer.exe。因此，例如在屏幕左侧设置任务栏的批处理(假设您在d：\ bottom.reg文件夹中有该文件)。

reg add d:\scripts\Bottom.reg
@echo off taskkill /f /IM explorer.exe
explorer.exe

bottom.reg的内容如下

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2]
"Settings"=hex:28,00,00,00,ff,ff,ff,ff,02,00,00,00,03,00,00,00,3e,00,00,00,2e,\
  00,00,00,00,00,00,00,82,04,00,00,80,07,00,00,b0,04,00,00

对于left.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2]
"Settings"=hex:28,00,00,00,ff,ff,ff,ff,02,00,00,00,00,00,00,00,3e,00,00,00,2e,\
  00,00,00,00,00,00,00,00,00,00,00,3e,00,00,00,b0,04,00,00

您将有一些闪烁，但由于您将这样做，当您启动窗口，这不会是一个问题，我想。我在Windows 7上测试了这个。

编辑:制作了一个vbscript，它基于屏幕分辨率做同样的事情

HKEY_CURRENT_USER = &H80000001
Set WshShell = CreateObject("WScript.Shell")
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set ObjRegistry = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & strComputer & "\root\default:StdRegProv")

'Get curr. user name
Set colItems = objWMIService.ExecQuery("Select * From Win32_ComputerSystem")
For Each objItem in colItems
  strCurrentUserName = objItem.UserName
Next

Set colItems = objWMIService.ExecQuery("Select * From Win32_DesktopMonitor where DeviceID = 'DesktopMonitor1'",,0) 
For Each objItem in colItems 
  intHorizontal = objItem.ScreenWidth 
  intVertical = objItem.ScreenHeight 
Next 

bottom = Array(&H28,&H00,&H00,&H00,&Hff,&Hff,&Hff,&Hff,&H02,&H00,&H00,&H00,&H03,&H00,&H00,&H00,&H3e,&H00,&H00,&H00,&H2e,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H82,&H04,&H00,&H00,&H80,&H07,&H00,&H00,&Hb0,&H04,&H00,&H00)
left_   = Array(&H28,&H00,&H00,&H00,&Hff,&Hff,&Hff,&Hff,&H02,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H3e,&H00,&H00,&H00,&H2e,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H00,&H3e,&H00,&H00,&H00,&Hb0,&H04,&H00,&H00)

if intHorizontal >= 1920 then
  regdata = bottom
else
  regdata = left_
end if

ObjRegistry.SetBinaryValue HKEY_CURRENT_USER, "Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2\", "Settings", regdata

'Restart user shell
Set colProcessList = objWMIService.ExecQuery("Select * from Win32_Process Where Name = 'Explorer.exe'")
For Each objProcess in colProcessList
    colProperties = objProcess.GetOwner(strNameOfUser,strUserDomain)
  wscript.echo colProperties
    If strUserDomain & "\" & strNameOfUser = strCurrentUserName then
    wscript.echo "restarting"
        objProcess.Terminate()
    end if
Next