/*
* Based upon
* http://blogs.msdn.com/jasonz/archive/2007/05/11/code-sample-is-your-process-using-the-silverlight-clr.aspx
* and http://www.csharpfriends.com/Forums/ShowPost.aspx?PostID=27395.
*/
/// <summary>
/// Returns the parent Process of the given one, or null on failure.
/// </summary>
/// <returns></returns>
public static Process FindParent(Process process)
{
int procid = process.Id;
Win32.PROCESSENTRY32 pe32 = new Win32.PROCESSENTRY32();
pe32.dwSize = (uint)Marshal.SizeOf(pe32);
Win32.ToolHelpHandle thh = Win32.CreateToolhelp32Snapshot(Win32.SnapshotFlags.Process, 0);
try
{
if (thh.IsInvalid)
{
log.Error("CreateToolhelp32Snapshot failed");
return null;
}
if (Win32.Process32First(thh, ref pe32))
{
do
{
if (pe32.th32ProcessID == procid)
{
return Process.GetProcessById(Convert.ToInt32(pe32.th32ParentProcessID));
}
}
while (Win32.Process32Next(thh, ref pe32));
// Maybe the given process has gone away? I don't know if it's possible for a process
// to have no parent.
return null;
}
else
{
log.Error("Process32First failed");
return null;
}
}
finally
{
thh.Close();
}
}
/*
* Based upon
* http://blogs.msdn.com/jasonz/archive/2007/05/11/code-sample-is-your-process-using-the-silverlight-clr.aspx
* and http://www.csharpfriends.com/Forums/ShowPost.aspx?PostID=27395.
*/
/// <summary>
/// Returns the parent Process of the given one, or null on failure.
/// </summary>
/// <returns></returns>
public static Process FindParent(Process process)
{
int procid = process.Id;
Win32.PROCESSENTRY32 pe32 = new Win32.PROCESSENTRY32();
pe32.dwSize = (uint)Marshal.SizeOf(pe32);
Win32.ToolHelpHandle thh = Win32.CreateToolhelp32Snapshot(Win32.SnapshotFlags.Process, 0);
try
{
if (thh.IsInvalid)
{
log.Error("CreateToolhelp32Snapshot failed");
return(null);
}
if (Win32.Process32First(thh, ref pe32))
{
do
{
if (pe32.th32ProcessID == procid)
{
return(Process.GetProcessById(Convert.ToInt32(pe32.th32ParentProcessID)));
}
}while (Win32.Process32Next(thh, ref pe32));
// Maybe the given process has gone away? I don't know if it's possible for a process
// to have no parent.
return(null);
}
else
{
log.Error("Process32First failed");
return(null);
}
}
finally
{
thh.Close();
}
}
