Here is my question about the memory: So I have a base address of a chunk of memory from it's size, from VirtualQueryEx (if you dont use windows, it's ok, it's not about how u get these values, because I think the base concept is the same)
start = mbi.BaseAddress finish = mbi.RegionSize So at this time, I use while and this is how it looks like while index < finish: # access the memory here: while memory function( index) # then index += 1, for the inner loop ## this line complete the outer while loop index += mbi.RegionSize so Why did I put down index += 1 ? That's because what I think about the memory looks like this (short)(int)(double)(int)(int)(int)(double) and so on, since I can't predict which address is the beginning of a double, the only way to deal with that is to use increment by 1. Now, from what I have been reading, it seems there is a better way to do it, for instance, a for loop. for(start,finish, 8) why 8? because double begins at exact 0 or multiple of 8 bytes, right? On Sun, Oct 8, 2017 at 4:46 PM, Alan Gauld via Tutor <tutor@python.org> wrote: > On 08/10/17 20:18, Michael C wrote: > > This is the red part > > index = current_address > > end = current_address + mbi.RegionSize > > > > while index < end: > > if ReadProcessMemory(Process, index, ctypes.byref(buffer), \ > > ctypes.sizeof(buffer), > > ctypes.byref(nread)): > > ## value comparison to be implemented. > > pass > > else: > > raise ctypes.WinError(ctypes.get_last_error()) > > > > index += 1 > > I haven't been following this closely so may be way off here, > but does this mean you are incrementing the memory address > by 1? If so you are only increasing the pointer by 1 byte > but you are, presumably, reading multiple bytes at a time > (the size of the buffer presumably). > > Do you perhaps need to treat the buffer as a byte array > and use something like the struct module to decode it? > (assuming you know what you are reading...?) > > But I may be way off, I'm just going on a cursory look. > > -- > Alan G > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > http://www.amazon.com/author/alan_gauld > Follow my photo-blog on Flickr at: > http://www.flickr.com/photos/alangauldphotos > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
