DDE problems on 16bit Apps
eric.pouech at wanadoo.fr
Thu Feb 28 12:54:30 CST 2002
list at vmn.com.br a écrit :
> I tried running the point of sale apps this morning that communicate with DDE.
> Both of them (DISP.EXE and PDV.EXE) are 16bit apps.
> There is also a 32bit DISP but I am using the 16bit version.
> I have access to the source of these programs.
> The program init sequence is PDV.EXE calls DISP.EXE with a shell comand and then
> sets up
> DDE. PDV does all the processing, talks to external hardwares and then
> sends output for DISP to display.
it seems that the second program doesn't get a chance to initialize its
facilities before the first tries to connect, hence the trouble
can you provide more information on the start sequence ? sounds like a
in 16 bit program startup & synchro (or some undocumented features in 16
on PDV side between the spawn of DISP and the connection trial
on DISP side between the program start and its DDEML initialization
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