SendMessage(BBHwnd, BB_SETSTYLE, 0, LPARAM(FileN));
BBhwnd is set before this BB_SETSTYLE is a constant defined with the correct ID and FileN is a string containing a filename.
Im trying to send this to BlackBox and alt shell for windows made in c++ but it returns the error 'unable to open file "".' as if it is getting nothing.
Ive tryed alot of diff ways to send FileN and they either crash blackbox or get this error(see above).