Hi.

How do you pass data and/or pointer to data in a parent
process, both primary and/or child threads, to the primary
thread (default) of a child process?

Jeffrey Richter demonstrates the use of CreateProcess(),
but he does not discuss a way to pass in data.

Thanks,
Kuphryn

If you wish to share data between the apps then take a look at memory mapped
files (CreateFileMapping) and for locking you'll probably want a mutex
(CreateMutex).

If you just wish to pass from parent to child then a simple file or command
line might do.

Or, you could use pipes, or if they have both have a message loop you could
fudge it with WM_COPYDATA.

--
russ.
http://www.gipsysoft.com/articles/winspector/ - FREE Spy++ replacement.
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Nice!  Thanks.

Which methods of passing data across processes performs
best?

Kuphryn

TBH I've never had the need to profile them. I'm sure someone, somewhere
has. Why not post a new message asking exactly that.

--
russ.
http://www.gipsysoft.com/articles/winspector/ - FREE Spy++ replacement.
http://www.gipsysoft.com/qhtm/ - FREE HTML display in a small and light DLL
http://www.gipsysoft.com/ZoomPlus/ - Programmers Zoom Utility on Steroids

A memory mapped file (mapped to the page file) is instantaneous with
zero overhead: It is shared memory and the data does not have to be
copied between the processes.  

--
Scott McPhillips [VC++ MVP]