EM_STREAMIN and the system plugin

is it possible?
I could not get it working, brainsucker can you confirm or deny if this is possible at all since the callback is inside a struct ptr that is sent to the richedit window using sendmessage

kichik: nsis already has a callback, is it possible to get the address of this callback and use that?

It should be possible to do with System's callbacks. However, you can't use a NSIS function as a callback function. The System plug-in might support this one day, but currently, the address of a NSIS function and a callback function are totally unrelated.

Got it working. It doesn't read from a file, but I'm sure you'll be able to add that easily.