private bool TryFindDTE(string slnPath, out EnvDTE.DTE dte)
{
if (dteInstances.TryGetValue(slnPath, out dte))
{
return(true);
}
try
{
AccessVisualStudioResult accessResult = AccessVisualStudioViaDTE(slnPath, out dte);
if (accessResult == AccessVisualStudioResult.VSInstanceIsOpen)
{
dteInstances[slnPath] = dte;
return(true);
}
}
catch (Exception e)
{
Log(ELogVerbosity.Warning, e.ToString());
}
return(false);
}
private AccessVisualStudioResult AccessVisualStudioViaDTE(string solutionPath, out EnvDTE.DTE dte)
{
dte = null;
AccessVisualStudioResult accessResult = AccessVisualStudioResult.VSInstanceIsNotOpen;
// Open the Running Object Table (ROT)
IRunningObjectTable runningObjectTable;
if (GetRunningObjectTable(0, out runningObjectTable) == 0)
{
IEnumMoniker monikersTable;
runningObjectTable.EnumRunning(out monikersTable);
if (monikersTable != null)
{
monikersTable.Reset();
// Look for all visual studio instances in the ROT
IMoniker[] currentMoniker = new IMoniker[1];
while (accessResult != AccessVisualStudioResult.VSInstanceIsOpen && monikersTable.Next(1, currentMoniker, IntPtr.Zero) == 0)
{
IBindCtx bindCtx;
string displayName = null;
if (CreateBindCtx(0, out bindCtx) == 0)
{
currentMoniker[0].GetDisplayName(bindCtx, null, out displayName);
}
if (displayName != null)
{
if (IsVisualStudioDTEMoniker(displayName))
{
object comObject;
if (runningObjectTable.GetObject(currentMoniker[0], out comObject) == 0)
{
EnvDTE.DTE tempDte = comObject as EnvDTE.DTE;
// Get the solution path for this instance
// If it equals the solution we would have opened above in RunVisualStudio(), we'll take that
EnvDTE.Solution solution = tempDte.Solution;
string filename = solution.FileName;
if (solution.IsOpen)
{
if (!string.IsNullOrWhiteSpace(filename))
{
if (string.Equals(Path.GetFullPath(filename), Path.GetFullPath(solutionPath), StringComparison.OrdinalIgnoreCase))
{
dte = tempDte;
accessResult = AccessVisualStudioResult.VSInstanceIsOpen;
}
}
}
else
{
Log(ELogVerbosity.Warning, "Visual Studio is open but could not be queried - it may be blocked by a modal operation");
accessResult = AccessVisualStudioResult.VSInstanceIsBlocked;
}
}
else
{
Log(ELogVerbosity.Warning, "Couldn't get Visual Studio COM object");
accessResult = AccessVisualStudioResult.VSInstanceUnknown;
}
}
}
else
{
Log(ELogVerbosity.Warning, "Couldn't get display name");
accessResult = AccessVisualStudioResult.VSInstanceUnknown;
}
}
}
else
{
Log(ELogVerbosity.Warning, "Couldn't enumerate ROT table");
accessResult = AccessVisualStudioResult.VSInstanceUnknown;
}
}
else
{
Log(ELogVerbosity.Warning, "Couldn't get ROT table");
accessResult = AccessVisualStudioResult.VSInstanceUnknown;
}
return(accessResult);
}
