C++ COM API IGuest->CreateSession/ProcessCreate

[syncovery]

I could not ProcessCreate on XP virtual machine,
so I installed Win7 with the same problem.

I'm running on Win 10.

[pentagonik]

Just had a quick peek at the details provided.

It looks like the Guest Additions and the VBoxService inside the guest are installed correctly.

This error, however, looks like you didn't specify a password for the user you're trying to use with Guest Control:

VBoxManage.exe: error: The specified user was not able to logon on guest
VBoxManage.exe: error: Details: code VBOX_E_IPRT_ERROR (0x80bb0005), component GuestSessionWrap, interface IGuestSession, callee IUnknown
VBoxManage.exe: error: Context: "WaitForArray(ComSafeArrayAsInParam(aSessionWaitFlags), 30 * 1000, &enmWaitResult)" at line 938 of file VBoxManageGuestCtrl.cpp

Did you try to specify a password for the guest user and restarted the guest afterwards?

[syncovery]

Dear Pentagonik,
your notice is very crucial!

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Guest->CreateSession

with correct password and username provided - now makes GuestSession->ProcessCreate to start process in guest VM!

However the application on guest machine runs in hidden mode! e.g. it is visible only in Task Manager as running process and finally is killed by OS after some period.
Can you please suggest how to start application in guest machine as if it was started by user in GUI mode? In other words - visible in VirtualBox frame.

here is my code

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   CComSafeArray<VARIANT> aCreateFlags(2);
	aCreateFlags[0] = ProcessCreateFlag_WaitForProcessStartOnly;
	aCreateFlags[1] = ProcessCreateFlag_IgnoreOrphanedProcesses;
	p_GuestSession->ProcessCreate( SysAllocString(L"C:\\TestMonitor\\TestMonitor.exe"), NULL, NULL, aCreateFlags, 10000, p_GuestProcess );		

However it does not matter what CreateFlags i'm providing, application starts as hidden and eventually disappears.

thank you very much!!!!
Max to you too!!!

[noteirak]

pentagonik saved the day thank you to him - I completely skipped that line.

As for the program not starting on the desktop, that is because the guest session initiated by VirtualBox is NOT the same as yours GUI one. It is a different, independant user session (context if you wish) and by default will not mix.
This is the same kind of issue as showing a GUI application in the GUI when started from Task Manager.
I personally do not know how to solve it on Windows...

[syncovery]

Hi Max,

after ProcessCreate i'm doing

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ProcessWaitResult aReason;
rc = GuestProcess->WaitFor( ProcessWaitForFlag_Terminate, 30000, &aReason );

and the application appears in VBox GUI frame for about 5 seconds - can see it my own eyes.
But afterwards it is killed by OS. In the same time my GuestProcess->WaitFor still waits for 30 seconds to complete.
If i use ProcessWaitForFlag_Start flag, then my GuestProcess->WaitFor is waiting for about 5 sec and exits, but there is no GUI application started is visible.

thank you supporting!

[syncovery]

I want to add.
I made the same test on Win XP, and ProcessCreate with successful Guest->CreateSession started to work when i added implicit password in OS
for the User account. WinXP allows to have user account without password, but Guest->CreateSession logs in correctly when password provided.

but running application has the same effect as on Win 7, application starts and shuts down after 5 seconds.

[noteirak]

Can you try to start it via vboxmanage and see what happens? you would do something like this which is just a replica of what you do with the API:

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vboxmanage guestcontrol <vm> --username <user> --password <password> run <add more options> -- /path/to/exec arg1 arg2

See here for a detailed list of arguments