Question

I use this code to list processes:

       //Creating ListBox
        hPNList=CreateWindow(TEXT("ListBox"),TEXT(""),WS_CHILD|WS_VISIBLE|LBS_SORT|LBS_NOTIFY,30,132,185,380,hWnd,(HMENU)PNLIST_ID,
        GetModuleHandle(NULL),NULL);

        //changing Font
        SendMessage( hPNList ,WM_SETFONT ,(WPARAM) GetStockObject(DEFAULT_GUI_FONT ),TRUE);

        //making list
        ProcessCount =getprocesslist(pro);

        //adding to list  
        for ( i = 0; i < ProcessCount; i++) 
        { 
            int pos = (int)SendMessage(hPNList, LB_ADDSTRING, 0, 
                (LPARAM) pro[i].szExeFile); 
            // Set the array index of the player as item data.
            // This enables us to retrieve the item from the array
            // even after the items are sorted by the list box.
            SendMessage(hPNList, LB_SETITEMDATA, pos, (LPARAM) pro[i].th32ProcessID ); 
        } 

Now I want to show that in a tree style.Can anybody help me how to do it?

Answer 1

See Using Tree-View Controls for a general overview of how to work with the native tree view controls in Windows. In particular, see How to Add Tree-View Items for code examples on how to add a hierarchy of items to a tree view.

It boils down to:

1. Use the CreateWindow function while specifying WC_TREEVIEW as the window class
2. Send the TVM_INSERTITEM message to the tree window to populate it with tree items.