Unknown software exception (0xc0000037)

[Andy Tosswill]

Folks,
I am getting an unknown software exception while running an app from
VC++ 4.1. It happens seemingly at random, i.e., at the same place in my code,
but at seemingly random times.

The exception dialog box message:

"The exception unknown software exception (0xc0000037) occurred in the
application at location 0x77fa02ad."

The info dialog box message in the debugger:

"Unhandled exeception in mydemo.exe (NTDLL.DLL): 0xc0000037: (unknown)"

The stack trace:

NTDLL! 77fa02ad()
NTDLL! 77f8a35e()
GDI32! 77ee14a3()
CDC::SelectGdiObject(HDC__ * 0x000000a8, void * 0x0000002b) line 233 + 14 bytes
CDC::SelectObject(CBitmap * 0x0062f420 {CGdiObject}) line 557 + 70 bytes
GdWinPainter::mDrawString() line 3083

The offending instruction:

77fa02ad mov esp,ebp

Can anyone tell me what software exception 0xc0000037 is caused by?
More generally, is there documentation for this (and other) "unknown"
exceptions?

Thanks.

-- Andy

[Jonathan Edwards]

Andy Tosswill wrote:
>
> Folks,
> I am getting an unknown software exception while running an app from
> VC++ 4.1. It happens seemingly at random, i.e., at the same place in my code,
> but at seemingly random times.
>
> The exception dialog box message:
>
> "The exception unknown software exception (0xc0000037) occurred in the
> application at location 0x77fa02ad."
>

The only reference I could find to C0000037 was in the DDK where it's was
defined as something like STATUS_PORT_DISCONNECTED, which doesn't seem
terribly relevant to the information you provided.

Anyway, if you are using comms ports then this may be the problem and the
GDI stuff a red herring.

--
Jonathan Edwards
R&D S&S International
email - jedw...@uk.drsolomon.com
web - www.drsolomon.com