dict_keys() is empty when trying to select a ListBox item

I try to select an item in a ListBox (pywinauto 0.6.5). UPD: I work with Qt5 software.

The initial script just finds the certain drop down menu inside a dialog.

from pywinauto.application import Application
app = Application(backend='uia').start(r"app.exe")
dlg = app.window(best_match='Select Rename Device')
dlg.window(best_match='DownComboBox3').print_control_identifiers()

The output seems to be good:

ComboBox - ' Down'    (L795, T522, R1157, B542)
['ComboBox', ' DownComboBox', ' Down']
child_window(title=" Down", control_type="ComboBox")
   | 
   | ListBox - ''    (L0, T0, R0, B0)
   | ['', 'ListBox']
   |    | 
   |    | ListItem - '00/4i Simulation mode'    (L1, T1, R752, B24)
   |    | ['00/4i Simulation mode', '00/4i Simulation modeListItem', 'ListItem', 'ListItem0', 'ListItem1']
   |    | child_window(title="00/4i Simulation mode", control_type="ListItem")
   |    | 
   |    | ListItem - '00/2i Simulation mode'    (L1, T24, R752, B47)
   |    | ['00/2i Simulation mode', '00/2i Simulation modeListItem', 'ListItem2']
   |    | child_window(title="00/2i Simulation mode", control_type="ListItem")
   |    | 
   |    | ListItem - '00/6i Simulation mode'    (L1, T47, R752, B70)
   |    | ['00/6i Simulation mode', '00/6i Simulation modeListItem', 'ListItem3']
   |    | child_window(title="00/6i Simulation mode", control_type="ListItem")

Process finished with exit code 0

Now I try to select ‘00/2i Simulation mode’ ListItem:

from pywinauto.application import Application
app = Application(backend='uia').start(r"app.exe")
dlg = app.window(best_match='Select Rename Device')
dlg.window(best_match='DownComboBox3').child_window(best_match='00/2i Simulation mode').select()

but got an error: pywinauto.findbestmatch.MatchError: Could not find '00/2i Simulation mode' in 'dict_keys([])'

I tried to apply workaround suggested in the issue #365 but the error was the same:

from pywinauto.application import Application
app = Application(backend='uia').start(r"app.exe")
dlg = app.window(best_match='Select Rename Device')
dlg.window(best_match='DownComboBox3').ListBox.child_window(title="00/2i Simulation mode", control_type="ListItem").select()

Also, I tried to change backend to win32 (as #467 suggested).

But the dict_keys() was still empty.

I have no idea where I’m wrong. May anybody suggests a way to solve this issue with drop-down menu selection?

[vnabokit]

Use Case. Select an item from ComboBox control for an Qt5.6 application.

App example: https://fex.net/485689299381 (it is standard ‘blockingslave.exe’ Qt app compiled via QtCreator using MinGW) Note: Activate a COM port before using this app (I plugged an USB device, USB type B)

Actual Result: Such constructions do not work:

dlg.child_window(title=' Down').child_window(best_match='ListBox').select('COM12')

or

dlg.ComboBox.child_window(best_match='ListBox').select('COM12')

or

dlg.ComboBox.ListBox.select(0)

Expected Result: Ability to make selection by any way.

Full script code:

from pywinauto.application import Application
import time

app_full_path = r'C:\Qt56\Examples\Qt-5.6\serialport\build-blockingslave-Desktop_Qt_5_6_2_MinGW_32bit-Debug\debug\blockingslave.exe'
app = Application(backend='uia').start(app_full_path)
time.sleep(2)
dlg = app.window(best_match='Dialog')
dlg.child_window(title=' Down').child_window(best_match='ListBox').select('COM12')

Screens:

[vasily-v-ryabov]

Method .select() for combo box should work well now (in atspi branch). So we’re closing the issue. The fix will be included into next major release (no exact deadline though).