Getting number of items in ListView in external application.

[ModbusMan]

I am trying to automate the steps required by an compiler app. After loading and starting compilation the compiler opens a dialogue window with a ListView component in which the progress is logged. I need to know how many items are in the ViewList so I can detect when compilation is finished.

I've tried several things with no success:

Local $hCtrl = ControlGetHandle($hWnd, "", $sCtrlClass)

Local $aRetVal = _GUICtrlListView_GetItemCount($hCtrl)

$aRetVal = DllCall("user32.dll", "int", "SendMessage", "hwnd", $hCtrl, "int", $LVM_GETITEMCOUNT, "int", 0, "int", 0)

$aRetVal = _WinAPI_SendMessageTimeout ( $hCtrl, $LVM_GETITEMCOUNT , 0 , 0)

_GUICtrlListView_GetItemCount seems to be intented for use on ViewLists created when making an AutoIt GUI as far as I can see. Not sure for 100%.

In all 3 cases $aRetVal = 0.

Any help welcome here...

Spoiler

 

 

 

Edited June 21, 2023 by ModbusMan
Referred to ViewList component in post, should have been ListView.

[Andreik]

Use AutoIt Window Info and hover this control to see exactly what kind of control is there. Make a screenshot and show us.

Edit: you can find the tool in your default AutoIt installation directory, it's called Au3Info.exe or Au3Info_x64.exe. Run the app and use the finder tool to get these info.

Edited June 19, 2023 by Andreik

[ModbusMan]

Hi Andreik

Unfortunately I was using the wrong window title in ControlGetHandle to retrieve the ListView control handle. Got a valid control handle but not for the correct list box. 😦

_GUICtrlListView_GetItemCount, DllCall "user32.dll", _WinAPI_SendMessageTimeout as shown in the code in my previous post all work. So does the built-in AutoIt function ControlListView.

Thanks for the help. Problem solved.

[Andreik]

That's why I said to use the AutoIt Info tool to double check the name of the window, classes, etc. To match window titles easier you can user AutoItSetOption() with option WinTitleMatchMode.