How to get Windows window names with ctypes in python
<p>I try to get Windows window title names and pids through handles with long objects. My code works but there is something wrong with it. I get only 4 window titles when I should get 10 or more. Can anyone help and tell me how to fix this code? I think the problem is with how I convert long objects (I don't understand them too well, as well as ctypes in general).</p>

<pre><code>from __future__ import print_function
from ctypes import *

psapi = windll.psapi
titles = []


# get window title from pid
def gwtfp():
    max_array = c_ulong * 4096
    pProcessIds = max_array()
    pBytesReturned = c_ulong()

    psapi.EnumProcesses(byref(pProcessIds),
                        sizeof(pProcessIds),
                        byref(pBytesReturned))

    # get the number of returned processes
    nReturned = pBytesReturned.value/sizeof(c_ulong())
    pidProcessArray = [i for i in pProcessIds][:nReturned]
    print(pidProcessArray)
    #
    EnumWindows = windll.user32.EnumWindows
    EnumWindowsProc = WINFUNCTYPE(c_bool, POINTER(c_int), POINTER(c_int))
    GetWindowText = windll.user32.GetWindowTextW
    GetWindowTextLength = windll.user32.GetWindowTextLengthW
    IsWindowVisible = windll.user32.IsWindowVisible


    for process in pidProcessArray:
        #print("Process PID %d" % process)
        if IsWindowVisible(process):
            length = GetWindowTextLength(process)
            buff = create_unicode_buffer(length + 1)
            GetWindowText(process, buff, length + 1)
            titles.append(buff.value)


gwtfp()
print(titles)
</code></pre>