This is my updated version, it still doesn't work :(
base = mbi.BaseAddress
buffer = ctypes.c_int32()
buffer_pointer = ctypes.byref(buffer)
ReadProcessMemory = Kernel32.ReadProcessMemory
if ReadProcessMemory(Process, base, buffer_pointer, mbi.RegionSize, None):
print('buffer is: ',buffer)
else:
raise ctypes.WinError(ctypes.get_last_error())
On Fri, Oct 6, 2017 at 2:06 PM, Michael C <mysecretrobotfact...@gmail.com>
wrote:
> like this?
>
> buffer = ctypes.byref(ctypes.create_string_buffer(4))
>
> On Fri, Oct 6, 2017 at 1:55 PM, eryk sun <eryk...@gmail.com> wrote:
>
>> 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())
>>
>
>
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