如何知道一个COM+应用程序是否在活动？

[dahua]

即在组建服务里能看到的，代表COM+应用程序的小球在转的状态

[Onega]

get running object table( GetRunningObjectTable ), search if target object is existing.

[Onega]

or Enumerating All Modules For dllhost.exe, check if the COM DLL is loaded

To determine which processes have loaded a particular DLL, you must enumerate the modules for each process. The following sample code uses the EnumProcessModules function to enumerate the modules of current processes in the system.


#include <windows.h>
#include <stdio.h>
#include "psapi.h"

void PrintModules( DWORD processID )
{
HMODULE hMods[1024];
HANDLE hProcess;
DWORD cbNeeded;
unsigned int i;

// Print the process identifier.

printf( "\nProcess ID: %u\n", processID );

// Get a list of all the modules in this process.

hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
PROCESS_VM_READ,
FALSE, processID );
if (NULL == hProcess)
return;

if( EnumProcessModules(hProcess, hMods, sizeof(hMods), &cbNeeded))
{
for ( i = 0; i < (cbNeeded / sizeof(HMODULE)); i++ )
{
char szModName[MAX_PATH];

// Get the full path to the module's file.

if ( GetModuleFileNameEx( hProcess, hMods[i], szModName,
sizeof(szModName)))
{
// Print the module name and handle value.

printf("\t%s (0x%08X)\n", szModName, hMods[i] );
}
}
}

CloseHandle( hProcess );
}

void main( )
{
// Get the list of process identifiers.

DWORD aProcesses[1024], cbNeeded, cProcesses;
unsigned int i;

if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
return;

// Calculate how many process identifiers were returned.

cProcesses = cbNeeded / sizeof(DWORD);

// Print the name of the modules for each process.

for ( i = 0; i < cProcesses; i++ )
PrintModules( aProcesses[i] );
}

[xiaohyy]

try
..
catch
..

[warmchang]

嗯，上面的方法应该可以实现。

[dahua]

to Onega() :
谢谢，还要请教
仔细看了msdn，GetRunningObjectTable还是不明白怎么用。
第二个方法看明白了
但有个问题
如何把知道了ProcessID，如何知道ProcessName，也就是说怎么判断哪个进程是dllHost

[Onega]

http://expert.csdn.net/Expert/topic/2292/2292598.xml?temp=.8840601

[dahua]

help

[Onega]

http://www.codeguru.com/complus/complus_admin.html
Programming the COM+ Admin Objects in Visual C++