Get program's name from WB

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Mon, 2015-08-31 01:14

mritter0

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Last seen: 2 years 5 months ago

Joined: 2014-04-21 21:15

Get program's name from WB

When starting my program from a Shell I can get the program's name via argv[0]. (What it is on disk)

How do I get when started from WB? I do this to check where started from:

ThisProcess=(struct Process *)IExec->FindTask(NULL);
if (ThisProcess->pr_CLI)
{
    FromShell=TRUE;
    ......
}
else
{
    FromShell=FALSE;
    ......
}

I would like to get it from ThisProcess if possible.

Edit: Entire path would be good, too. Can get name from that if need to.

Mon, 2015-08-31 09:54

salass00

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Joined: 2011-02-03 11:27

Re: Get program's name from WB

If argc is 0 then your program was started from WB and argv will contain a pointer to a WBStartup structure.

if (argc == 0) {
    // from WB
    struct WBStartup *wbmsg = (struct WBStartup *)argv;
    // ...
} else {
    // from shell
    // ...
}

wbmsg->sm_ArgList[0] will always point to your program similar to argv[0].

To convert the wbarg into a path you need to do:

TEXT pathbuf[1024];
struct WBArg *wbarg = &wbmsg->sm_ArgList[0];
IDOS->DevNameFromLock(wbarg->wa_Lock, pathbuf, sizeof(pathbuf), DN_FULLPATH);
IDOS->AddPart(pathbuf, wbarg->wa_Name, sizeof(pathbuf));

Mon, 2015-08-31 10:07

OldFart

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Joined: 2010-11-30 14:09

Re: Get program's name from WB

@mritter0:

I don't know if that information is available through 'ThisProcess', but I use(d) these steps:
a: check whether argc is 0 as this indicates WB-started, in which case:
b: argv[0] holds a pointer to struct WBStartUp, which in turn:
c: in member 'sm_ArgList' holds a pointer to an array of struct WBArg, which in turn:
d: provides the members wa_Lock and wa_Name.

The first occurrance of struct WBArg containing the lock to the full fath of the program (IIRC) as well as the name of the program.

IIRC. I used to use something like this, but don't shoot me if I got it all wrong, as I haven't had my coffee yet:

((struct WBArg *)((struct WBStartup *)argv[0])->sm_ArgList)->wa_Lock
((struct WBArg *)((struct WBStartup *)argv[0])->sm_ArgList)->wa_Name

Hope this helps.

Regards
OldFart

EDIT: problem was addressed to already

Mon, 2015-08-31 14:37

trixie

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Joined: 2011-02-03 13:58

Re: Get program's name from WB

@mritter0

You may want to read this.

AmigaOne X5000-020 / 2GB RAM / Sapphire Pulse Radeon RX 560 / AmigaOS 4.1 Final Edition Update 2

Tue, 2015-09-01 03:32

mritter0

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Last seen: 2 years 5 months ago

Joined: 2014-04-21 21:15

Re: Get program's name from WB

Thanks, guys.

I had one of those 2:00AM "oh duh!" moments and figured out my problem. I was close. But I did pick up an idea from the examples!

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