Python: Get Current Index Selection of ComboBox

[cowofevil]

I know you're expecting a question, but actually this is just the answer to the question! I decided to post this here because through some mega-googling and forum snooping I finally came up with a solution to the problem. Since this forum has been very informative to me in the past I decided it was my duty to post this information here so the next guy doesn't need to waste many hours of his life trying to solve the problem.

Issue:

You need to know the index of the current selection of a combo box using AutoIt via the COM interface in Python.

Pre-Reqs:

Python 2.7 or greater.

PyWin32 (If you just have the ActiveState version of Python installed this will be done automatically)

AutoIt 3.3 or greater.

Imports:

from win32com.client import Dispatch
from win32api import SendMessage
from win32con import CB_GETCURSEL

The first import is for actually loading the COM class of AutoIt.

The second import is a Win32 function for sending messages to controls.

The third import is a constant that represents the message type you want to send.

Solution:

#init
strWindowTitle = 'TESTAPP'
strComboBoxID = '[CLASS:ComboBox; INSTANCE:1]'

#COM handle for AutoIt
comAutoIt = Dispatch("AutoItX3.Control")

#Get handle on combobox control.
#We get a string representation of hex that needs to be converted to int.
hdlComboBox = int(comAutoIt.ControlGetHandle(strWindowTitle, '', strComboBoxID), 16)

#Get the current index of the combobox. (Index is 0 based)
intIndex = SendMessage(hdlComboBox, CB_GETCURSEL, 0, 0)

Hope that was helpful!

Edited April 13, 2012 by cowofevil