如果您有PowerPoint的多个实例打开，你可以使用的东西沿着这些路线 - 这是我发现关闭PowerPoint应用程序时最简单的方法，当被要求退出时，它们不会清除。
这是我如何结束杀戮/关闭的PowerPoint（通过文件指定的路径已经打开）
/// <summary>
/// Close open PowerPoint document
/// </summary>
/// <param name="path">Path to document</param>
/// <param name="saveChanges">Save changes to document</param>
public void PowerPointCloseOpenDocument(String path, Boolean saveChanges = true)
{
ppApp = getPowerPointApp(path);
PowerPoint.Presentation pp = null;
if (!String.IsNullOrEmpty(path))
{
foreach (PowerPoint.Presentation p in ppApp.Presentations)
{
if (p.FullName.Equals(path, StringComparison.CurrentCultureIgnoreCase))
{
try
{
pp = p;
}
catch (Exception)
{ }
break;
}
}
}
if(saveChanges)
{
if(pp!=null)
{
pp.Save();
}
}
if(pp!= null)
{
Marshal.FinalReleaseComObject(pp);
}
if(null != ppApp)
{
Marshal.FinalReleaseComObject(ppApp);
}
var procs = FileUtil.WhoIsLocking(path);
if(procs!= null)
{
foreach(var proc in procs)
{
proc.Kill();
}
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
private PowerPoint.Application getPowerPointApp(String path = "")
{
try
{
PowerPoint.Application ppapp = null;
try
{
if (!String.IsNullOrEmpty(path))
{
ppapp = ((PowerPoint.Presentation)System.Runtime.InteropServices.Marshal.BindToMoniker(path)).Application;
}
}
catch (Exception) { }
if (ppapp == null)
{
try
{
ppapp = (PowerPoint.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("PowerPoint.Application");
}
catch (Exception)
{
ppapp = new PowerPoint.Application();
ppapp.Visible = Microsoft.Office.Core.MsoTriState.msoTrue;
}
}
if (ppapp != null)
{
ppapp.DisplayAlerts = Microsoft.Office.Interop.PowerPoint.PpAlertLevel.ppAlertsNone;
}
try { ppapp.Activate(); }
catch (Exception) { }
return ppapp;
}
catch (Exception)
{
return (PowerPoint.Application)Activator.CreateInstance(Type.GetTypeFromProgID("PowerPoint.Application"));
}
}
文件的Util类为您提供了目前锁定文件的进程列表。
static public class FileUtil
{
[StructLayout(LayoutKind.Sequential)]
struct RM_UNIQUE_PROCESS
{
public int dwProcessId;
public System.Runtime.InteropServices.ComTypes.FILETIME ProcessStartTime;
}
const int RmRebootReasonNone = 0;
const int CCH_RM_MAX_APP_NAME = 255;
const int CCH_RM_MAX_SVC_NAME = 63;
enum RM_APP_TYPE
{
RmUnknownApp = 0,
RmMainWindow = 1,
RmOtherWindow = 2,
RmService = 3,
RmExplorer = 4,
RmConsole = 5,
RmCritical = 1000
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
struct RM_PROCESS_INFO
{
public RM_UNIQUE_PROCESS Process;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCH_RM_MAX_APP_NAME + 1)]
public string strAppName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCH_RM_MAX_SVC_NAME + 1)]
public string strServiceShortName;
public RM_APP_TYPE ApplicationType;
public uint AppStatus;
public uint TSSessionId;
[MarshalAs(UnmanagedType.Bool)]
public bool bRestartable;
}
[DllImport("rstrtmgr.dll", CharSet = CharSet.Unicode)]
static extern int RmRegisterResources(uint pSessionHandle,
UInt32 nFiles,
string[] rgsFilenames,
UInt32 nApplications,
[In] RM_UNIQUE_PROCESS[] rgApplications,
UInt32 nServices,
string[] rgsServiceNames);
[DllImport("rstrtmgr.dll", CharSet = CharSet.Auto)]
static extern int RmStartSession(out uint pSessionHandle, int dwSessionFlags, string strSessionKey);
[DllImport("rstrtmgr.dll")]
static extern int RmEndSession(uint pSessionHandle);
[DllImport("rstrtmgr.dll")]
static extern int RmGetList(uint dwSessionHandle,
out uint pnProcInfoNeeded,
ref uint pnProcInfo,
[In, Out] RM_PROCESS_INFO[] rgAffectedApps,
ref uint lpdwRebootReasons);
/// <summary>
/// Find out what process(es) have a lock on the specified file.
/// </summary>
/// <param name="path">Path of the file.</param>
/// <returns>Processes locking the file</returns>
/// <remarks>See also:
/// http://msdn.microsoft.com/en-us/library/windows/desktop/aa373661(v=vs.85).aspx
/// http://wyupdate.googlecode.com/svn-history/r401/trunk/frmFilesInUse.cs (no copyright in code at time of viewing)
///
/// </remarks>
static public List<Process> WhoIsLocking(string path)
{
uint handle;
string key = Guid.NewGuid().ToString();
List<Process> processes = new List<Process>();
int res = RmStartSession(out handle, 0, key);
if (res != 0) throw new Exception("Could not begin restart session. Unable to determine file locker.");
try
{
const int ERROR_MORE_DATA = 234;
uint pnProcInfoNeeded = 0,
pnProcInfo = 0,
lpdwRebootReasons = RmRebootReasonNone;
string[] resources = new string[] { path }; // Just checking on one resource.
res = RmRegisterResources(handle, (uint)resources.Length, resources, 0, null, 0, null);
if (res != 0) throw new Exception("Could not register resource.");
//Note: there's a race condition here -- the first call to RmGetList() returns
// the total number of process. However, when we call RmGetList() again to get
// the actual processes this number may have increased.
res = RmGetList(handle, out pnProcInfoNeeded, ref pnProcInfo, null, ref lpdwRebootReasons);
if (res == ERROR_MORE_DATA)
{
// Create an array to store the process results
RM_PROCESS_INFO[] processInfo = new RM_PROCESS_INFO[pnProcInfoNeeded];
pnProcInfo = pnProcInfoNeeded;
// Get the list
res = RmGetList(handle, out pnProcInfoNeeded, ref pnProcInfo, processInfo, ref lpdwRebootReasons);
if (res == 0)
{
processes = new List<Process>((int)pnProcInfo);
// Enumerate all of the results and add them to the
// list to be returned
for (int i = 0; i < pnProcInfo; i++)
{
try
{
processes.Add(Process.GetProcessById(processInfo[i].Process.dwProcessId));
}
// catch the error -- in case the process is no longer running
catch (ArgumentException) { }
}
}
else throw new Exception("Could not list processes locking resource.");
}
else if (res != 0) throw new Exception("Could not list processes locking resource. Failed to get size of result.");
}
finally
{
RmEndSession(handle);
}
return processes;
}
}
如果您提供关于失败模式的更多详细信息而不是“Quit（）将不起作用”，这将有所帮助。 – 2010-07-07 17:24:42
对不起。我尝试使用Quit（）方法的目的是防止应用程序离开正在运行的Powerpoint进程。 Quit（）失败，因为它正在运行Powerpoint。它没有错误，但它也不会结束这个过程。 – Henry 2010-07-07 19:54:25