Can i exchange a datablock between two application with GlobalAlloc ?
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Nope. Each application has it's own memory/address context.
For which OS do you need that? Win9x or winNT or both?
snoopy_SpyAuthor Commented:
For Both.
Then you won't come around either using memory mapped files or using WM_COPYDATA (which uses memory mapped files internally).
Look at the documentation of

CreateFileMapping(dword(-1), ...);

You must call this in both application, then call MapViewOfFile in both applications. MapViewOfFile gives you a pointer. This pointer may be different in both applications, but they will nevertheless point to the same data block.

Regards, Madshi.

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