On Friday, 97/01/10, Darin McBride wrote to Jonathan de Boyne Pollard
about "writing REXX DLL's" as follows:

DM> BTW, is there a user-function that is called on init (and 
DM> term)?  I can't seem to find a reference to it... :-/

Hi Darin,

Watcom uses __dll_initialize() and __dll_terminate(); these are
documented in the Programmer's Guide. However, the first one is not
wholly satisfactory, since it is called after the run-time library has
been started and there are no parameters passed to it. This means that
the HMODULE that OS/2 put into the EDX register is gone, and so it is
difficult to determine any information about the DLL at run time.

For example, I would like to be able to determine the fully qualified
path/filename of a DLL from within that DLL. I cannot see any way to
achieve that using the Watcom compiler, since I cannot come up with
any way to obtain the HMODULE to call DosQueryModuleName().

Using the IBM compiler I can capture the HMODULE during
_DLL_InitTerm() and everything is copasetic. But using Watcom leaves
me snookered.

Any suggestions from echo participants will be welcome. [Yeah, I know:
just use the IBM compiler.]

Regards

Dave


 * KWQ/2 1.2i * Newbie: (n) someone who thinks RTFM is a 4-letter word.
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