On Fri, Oct 6, 2017 at 9:12 PM, Michael C <mysecretrobotfact...@gmail.com> wrote: > > How do I create a buffer, or rather, is a buffer just a variable?
A buffer is a block of memory for an I/O operation. For example, if you need to read a 4-byte (32-bit) integer at an address in another process, the 'buffer' could be ctypes.c_int32(). In general, to read an arbitrary-sized block of memory, use ctypes.create_string_buffer() to create a char array. > How do I create a pointer to it? Pass it byref(). > print('mbi.State: ',mbi.State) Check whether mbi.State is MEM_COMMIT before trying to read it. If it's MEM_FREE or MEM_RESERVE, then ReadProcessMemory will fail. > buffer = ctypes.create_string_buffer(4) > bufferSize = (ctypes.sizeof(buffer)) > > ReadProcessMemory = Kernel32.ReadProcessMemory > > if ReadProcessMemory(Process, ctypes.byref(mbi), buffer, bufferSize, None): > print('buffer is: ',buffer) > else: > print('something is wrong') Don't print "something is wrong". You're capturing the thread's last error value, so use it to raise an informative exception. For example: if not success: raise ctypes.WinError(ctypes.get_last_error()) _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor