Automation Support for Visual Basic 6 ListView

Question

I need to get control value / text through automation interface (coding with C ++ / C #). I tried with the UI Automation API , and this is some result obtained using Check :

pane, / .
, MSAA, Automation Spy .

, , ListView20WndClass, Slider20WndClass,... Visual Basic 6.
, - API, ?

1: Ranorex ( , 3490 ), , API:

2 , UI Automation :

• ThunderRT6FormDC:
• ThunderRT6CommandButton:
• ThunderRT6CheckBox:
• ....
• , ListView20WndClass Slider20WndClass,

1 , ( ):

#include <iostream>
using namespace std;

#include <UIAutomation.h>
#include <atlstr.h>
#include <Commctrl.h>

CString getListViewItemText(HWND hwnd, int nItem, int nSubItem) {
    LVITEM item;
    memset(&item, 0, sizeof(LVITEM));
    item.iSubItem = nSubItem;
    CString string;
    int Length = 64; //initial reasonable string length
    int ReturnCode;

    do {
        Length *= 2; //resize the string buffer
        item.cchTextMax = Length;
        item.pszText = string.GetBufferSetLength(Length);

        ReturnCode = (int)::SendMessage(hwnd, LVM_GETITEMTEXT,
            (WPARAM)nItem, (LPARAM)&item);
        printf("len = %d \n", ReturnCode);

    } while (ReturnCode == Length - 1); //if could not get all chars, try again

    string.ReleaseBuffer();
    return string;
}

void UI_Spy() {

    // Init COM
    CoInitialize(NULL);

    // Init UIAutomation instance
    IUIAutomation *pAuto;
    CoCreateInstance(CLSID_CUIAutomation, NULL,
        CLSCTX_INPROC_SERVER, IID_IUIAutomation, reinterpret_cast<void**>(&pAuto));

    if (pAuto) {

        IUIAutomationElement *pElm;
        POINT p;

        for (int i = 0; i < 10; i++) {
            for (int j = 5; j > 0; j--) {
                Sleep(1000);
                printf("%d ", j);
            }
            GetCursorPos(&p);
            if (pAuto->ElementFromPoint(p, &pElm) == S_OK) {
                wprintf(L"\nPOSITION x = %d, y = %d\n", p.x, p.y);

                BSTR str;
                pElm->get_CurrentName(&str);
                wprintf(L"-Name = %s\n", str);
                SysFreeString(str);

                pElm->get_CurrentLocalizedControlType(&str);
                wprintf(L"-Type = %s\n", str);
                SysFreeString(str);

                CONTROLTYPEID typeId;
                pElm->get_CurrentControlType(&typeId);

                switch (typeId) {

                    // Process checkbox
                case UIA_CheckBoxControlTypeId:
                    IUIAutomationTogglePattern  *toggle;
                    pElm->GetCurrentPattern(UIA_TogglePatternId, (IUnknown**)&toggle);
                    ToggleState state;
                    toggle->get_CurrentToggleState(&state);
                    printf("-Checkbox = %s\n", state == ToggleState::ToggleState_On ? "TRUE"
                        : (state == ToggleState::ToggleState_Off ? "FALSE" : "INTER"));
                    break;

                    // Process VB6 listview
                case UIA_PaneControlTypeId:
                    pElm->get_CurrentClassName(&str);
                    if (str != nullptr && wcscmp(str, L"ListView20WndClass") == 0) {
                        HWND hwnd;
                        pElm->get_CurrentNativeWindowHandle((UIA_HWND*)&hwnd);
                        printf("-VB6 Listview: %p\n", hwnd);

                        CString txt = getListViewItemText(hwnd, 0, 0);
                        //txt = "Test";
                        printf("-[0,0] = %S\n", (const wchar_t*)txt);
                    }
                    SysFreeString(str);
                    break;

                    // Process normal listview
                case UIA_ListControlTypeId:
                    HWND hwnd;
                    pElm->get_CurrentNativeWindowHandle((UIA_HWND*)&hwnd);
                    printf("-Normal Listview: %p\n", hwnd);

                    CString txt = getListViewItemText(hwnd, 0, 0);
                    //txt = "Test";
                    printf("-[0,0] = %S\n", (const wchar_t*)txt);
                    break;
                }

                wprintf(L"\n");
                pElm->Release();
            }
            printf("\n");
        }

        // Release UIAutomation instance
        pAuto->Release();
    }

    // Release COM
    CoUninitialize();
}

int main()
{
    UI_Spy();

    cin.get();
    return 0;
}

5..4..3..2..1, - , .
:

• VB6 (ListView20WndClass): (, 101 )
• MFC/Winform (SysListView32): ( )

Answer 1

ListView.ListItem hwnd.

ListView , SendMessage() LVM_GETITEM LVITEM :

LVM_GETITEM (Windows)

https://msdn.microsoft.com/en-us/library/windows/desktop/bb774953(v=vs.85).aspx

LVITEM (Windows)

https://msdn.microsoft.com/en-us/library/windows/desktop/bb774760(v=vs.85).aspx

:

(Windows) https://msdn.microsoft.com/en-us/library/windows/desktop/ff485973(v=vs.85).aspx

VB6. , , , , .

Answer 2

pywinauto, VB6 Win32 API ( , LVM_GETITEM ..). , ! . . .

API Win32 , UI Automation . UI Automation , .

. pywinauto. .