using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
namespace Rainbird.Tools.COMInterop
{
public class RunningObjectTable
{
private RunningObjectTable() { }
[DllImport("ole32.dll")]
private static extern int GetRunningObjectTable(uint reserved, out IRunningObjectTable pprot);
[DllImport("ole32.dll")]
private static extern int CreateBindCtx(uint reserved, out IBindCtx pctx);
public static object GetRunningCOMObjectByName(string objectDisplayName)
{
IRunningObjectTable runningObjectTable = null;
IEnumMoniker monikerList = null;
try
{
if (GetRunningObjectTable(0, out runningObjectTable) != 0 || runningObjectTable == null) return null;
runningObjectTable.EnumRunning(out monikerList);
monikerList.Reset();
IMoniker[] monikerContainer = new IMoniker[1];
IntPtr pointerFetchedMonikers = IntPtr.Zero;
while (monikerList.Next(1, monikerContainer, pointerFetchedMonikers) == 0)
{
IBindCtx bindInfo;
string displayName;
CreateBindCtx(0, out bindInfo);
monikerContainer[0].GetDisplayName(bindInfo, null, out displayName);
Marshal.ReleaseComObject(bindInfo);
if (displayName.IndexOf(objectDisplayName) != -1)
{
object comInstance;
runningObjectTable.GetObject(monikerContainer[0], out comInstance);
return comInstance;
}
}
}
catch
{
return null;
}
finally
{
if (runningObjectTable != null) Marshal.ReleaseComObject(runningObjectTable);
if (monikerList != null) Marshal.ReleaseComObject(monikerList);
}
return null;
}
public static IList<string> GetRunningCOMObjectNames()
{
IList<string> result = new List<string>();
IRunningObjectTable runningObjectTable = null;
IEnumMoniker monikerList = null;
try
{
if (GetRunningObjectTable(0, out runningObjectTable) != 0 || runningObjectTable == null) return null;
runningObjectTable.EnumRunning(out monikerList);
monikerList.Reset();
IMoniker[] monikerContainer = new IMoniker[1];
IntPtr pointerFetchedMonikers = IntPtr.Zero;
while (monikerList.Next(1, monikerContainer, pointerFetchedMonikers) == 0)
{
IBindCtx bindInfo;
string displayName;
CreateBindCtx(0, out bindInfo);
monikerContainer[0].GetDisplayName(bindInfo, null, out displayName);
Marshal.ReleaseComObject(bindInfo);
result.Add(displayName);
}
return result;
}
catch
{
return null;
}
finally
{
if (runningObjectTable != null) Marshal.ReleaseComObject(runningObjectTable);
if (monikerList != null) Marshal.ReleaseComObject(monikerList);
}
}
}
}
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