Switchdesktop e Createdesktop

[Guest]

I have createad an image of windows xpe SP1 with minlogon, and I have tried
to launch an application in a separate desktop with a simple loader that
create the new desktop and start the application with create process in this
desktop the source code is

hDesktop = CreateDesktop(
desktop,
NULL, NULL, 0,
//DESKTOP_CREATEMENU |
DESKTOP_CREATEWINDOW |
DESKTOP_SWITCHDESKTOP |
DESKTOP_READOBJECTS /*|
DESKTOP_WRITEOBJECTS |
STANDARD_RIGHTS_REQUIRED*/,
NULL );

ZeroMemory(&si, sizeof(STARTUPINFO));
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
si.cb = sizeof(STARTUPINFO);
si.lpDesktop = desktop;
//si.lpDesktop = NULL;
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOWDEFAULT;

SetCurrentDir(ExtractFilePath(filename));
bStarted = CreateProcess(NULL, //lpApplicationName: PChar;
filename, //lpCommandLine: PChar;
NULL, //PSecurityAttributes,
NULL, //PSecurityAttributes
FALSE, //bInheritHandles
NORMAL_PRIORITY_CLASS,//dwCreationFlags
NULL, //lpEnvironment
NULL, //lpCurrentDirectory
&si, //TStartupInfo
&pi); //TProcessInformation


Sleep(TempoSleep);

SwitchDesktop(hDesktop);

return 0;

In Windows XP professional edition this work fine, in XPE works only if set
si.lpDesktop = NULL, this means that the application run on the default
desktop and not on other : all application that I try to run in other desktop
return the same error.

My question is : in windows XPE SP1 multiple desktop are supported ? There's
a component to add in the target designer ?

Thanks in advance for the help.

 

[Slobodan Brcin \(eMVP\)]

Hi Paolo,

XPe SP1 can have all good things as XP Pro. But in your case you are using minlogon and that can be a problem. Try using winlogon
instead.

Regards,
Slobodan

PS:
Let us know if winlogon solved the problem.

 

[KM]

I am also interested to know whether it is possible to create multiple desktops with Minlogon.

Theoretically, Desktops functionality may be independent from Logon component as Winlogon/GINA itself creates the Default secure
Desktop.

Minlogon as well as Winlogon imports the CreateDesktop function from user32.dll so, I think, it probably still creates the Default
Desktop.

Paolo, please let us know if you app works fine with Winlogon.

 

[Guest]

With Winlogon switchdekstop and createdesktop works fine.

Maybe minlogon does not manage desktop.

Bye

 

[KM]

Paolo,

I guess the lack of Minlogon documentation only gives you an option of experimenting :-(

KM

 

[Slobodan Brcin \(eMVP\)]

I guess the lack of Minlogon documentation only gives you an option of experimenting :-(
Something like that

I usually prefer making things work on winlogon. Then just replace in resolved project in TD winlogon with minlogon component.
And if it is not working then I know at least that this is not dependency related problem but rather minlogon.

Regards,
Slobodan