public static extern int CreateProcessAsUser(SafeHandle hToken, string lpApplicationName, string lpCommandLine, IntPtr lpProcessAttributes, IntPtr lpThreadAttributes, bool bInheritHandles, int dwCreationFlags, HandleRef lpEnvironment, string lpCurrentDirectory, NativeMethods.STARTUPINFO lpStartupInfo, NativeMethods.PROCESS_INFORMATION lpProcessInformation);
public IProcess CreateProcess(ProcessStartInfo startInfo)
{
Invariant.ArgumentNotNull((object)startInfo, "startInfo");
if (startInfo.UseShellExecute || string.IsNullOrEmpty(startInfo.UserName))
{
return((IProcess) new ProcessWrapper(Process.Start(startInfo)));
}
if (string.IsNullOrEmpty(startInfo.FileName))
{
throw new InvalidOperationException("A file name must be provided for creating a process.");
}
IntPtr zero = IntPtr.Zero;
IntPtr num = startInfo.Password != null?Marshal.SecureStringToCoTaskMemUnicode(startInfo.Password) : Marshal.StringToCoTaskMemUni(string.Empty);
try
{
SafeFileHandle phToken;
if (NativeMethods.LogonUser(startInfo.UserName, startInfo.Domain, num, 2, 0, out phToken) == 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
int dwCreationFlags = 0;
if (startInfo.CreateNoWindow)
{
dwCreationFlags |= 134217728;
}
IntPtr handle1 = IntPtr.Zero;
GCHandle gcHandle = new GCHandle();
if (startInfo.EnvironmentVariables != null)
{
bool unicode = false;
if (Environment.OSVersion.Platform == PlatformID.Win32NT)
{
dwCreationFlags |= 1024;
unicode = true;
}
gcHandle = GCHandle.Alloc((object)this.CreateEnvironmentBlock(startInfo.EnvironmentVariables, unicode), GCHandleType.Pinned);
handle1 = gcHandle.AddrOfPinnedObject();
}
string lpCommandLine = this.BuildCommandLine(startInfo.FileName, startInfo.Arguments);
string lpCurrentDirectory = string.IsNullOrEmpty(startInfo.WorkingDirectory) ? Environment.CurrentDirectory : startInfo.WorkingDirectory;
NativeMethods.STARTUPINFO lpStartupInfo = new NativeMethods.STARTUPINFO();
NativeMethods.PROCESS_INFORMATION lpProcessInformation = new NativeMethods.PROCESS_INFORMATION();
try
{
if (NativeMethods.CreateProcessAsUser((SafeHandle)phToken, (string)null, lpCommandLine, IntPtr.Zero, IntPtr.Zero, false, dwCreationFlags, new HandleRef((object)null, handle1), lpCurrentDirectory, lpStartupInfo, lpProcessInformation) == 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
finally
{
phToken.Close();
lpStartupInfo.Dispose();
if (gcHandle.IsAllocated)
{
gcHandle.Free();
}
}
Process processById = Process.GetProcessById(lpProcessInformation.dwProcessId);
IntPtr handle2 = processById.Handle;
NativeMethods.CloseHandle(lpProcessInformation.hProcess);
NativeMethods.CloseHandle(lpProcessInformation.hThread);
return((IProcess) new ProcessWrapper(processById));
}
finally
{
if (num != IntPtr.Zero)
{
Marshal.ZeroFreeCoTaskMemUnicode(num);
}
}
}