private static extern bool CreateProcess(
string lpApplicationName, string lpCommandLine,
ref SecurityAttributes lpProcessAttributes, ref SecurityAttributes lpThreadAttributes,
bool bInheritHandles,
ProcessCreationFlags dwCreationFlags,
IntPtr lpEnvironment,
string lpCurrentDirectory,
[In] ref StartUpInfo lpStartupInfo, out ProcessInformation lpProcessInformation);
public ProcessCreator(string pathToProcess, WindowState windowState = WindowState.SW_SHOWNORMAL, StartUpInfo?startUpInfo = null)
{
PathToProcess = pathToProcess;
WindowState = windowState;
StartUpInfo = startUpInfo ?? new StartUpInfo()
{
dwFlags = 0x00000001,
wShowWindow = (short)WindowState
};
}
public async Task <CreateProcessData> CreateTaskAsync()
{
CreateProcessData createProcessData = new CreateProcessData();
if (!System.IO.File.Exists(PathToProcess))
{
return(createProcessData);
}
StartUpInfo startUpInfo = StartUpInfo;
ProcessInformation processInformation;
SecurityAttributes threadAttributes = new SecurityAttributes();
SecurityAttributes processAttributes = new SecurityAttributes();
var processCreated =
CreateProcess(
PathToProcess,
null,
ref processAttributes, ref threadAttributes,
false,
ProcessCreationFlags.CREATE_DEFAULT_ERROR_MODE,
IntPtr.Zero,
null,
ref startUpInfo, out processInformation);
if (processCreated)
{
createProcessData.Process = Process.GetProcessById(processInformation.dwProcessId);
createProcessData.ProcessInformation = processInformation;
return(await Task.Run(() => {
// 5 second timeout...
for (
int cTick = Environment.TickCount, eTick = (cTick + 5_000);
cTick < eTick || !createProcessData.WindowLoaded;
cTick++)
{
createProcessData.Process.Refresh();
if (!string.IsNullOrWhiteSpace(createProcessData.Process.MainWindowTitle))
{
createProcessData.WindowLoaded = true;
}
}
return createProcessData;
}));
}
return(createProcessData);
}
public static async Task <bool> CreateTaskAsync(string pathToProcess)
{
if (!System.IO.File.Exists(pathToProcess))
{
return(false);
}
StartUpInfo startUpInfo = new StartUpInfo()
{
dwFlags = 0x00000001,
wShowWindow = 7
};
ProcessInformation processInformation;
SecurityAttributes threadAttributes = new SecurityAttributes();
SecurityAttributes processAttributes = new SecurityAttributes();
var processCreated =
CreateProcess(pathToProcess, null, ref processAttributes, ref threadAttributes, false, ProcessCreationFlags.CREATE_DEFAULT_ERROR_MODE, IntPtr.Zero, null, ref startUpInfo, out processInformation);
if (processCreated)
{
Process process = Process.GetProcessById(processInformation.dwProcessId);
return(await Task.Run(() => {
// Sometimes, when creating a new process, the MainWindowHandle property is zero until the two while loops finish...
//
while (!process.WaitForInputIdle(100))
{
}
while (string.IsNullOrWhiteSpace(process.MainWindowTitle))
{
}
return true;
}));
}
return(processCreated);
}
public static bool Create(string pathToProcess, ProcessCreationFlags processCreationFlags, out Process process, out ProcessInformation processInformation)
{
process = null;
processInformation = default;
if (!System.IO.File.Exists(pathToProcess))
{
return(false);
}
StartUpInfo startUpInfo = new StartUpInfo();
SecurityAttributes threadAttributes = new SecurityAttributes();
SecurityAttributes processAttributes = new SecurityAttributes();
var processCreated =
CreateProcess(pathToProcess, null, ref processAttributes, ref threadAttributes, false, processCreationFlags, IntPtr.Zero, null, ref startUpInfo, out processInformation);
if (processCreated)
{
process = Process.GetProcessById(processInformation.dwProcessId);
}
return(processCreated);
}