horizontal scrollbar in listbox

This is a discussion on horizontal scrollbar in listbox within the Windows Programming forums, part of the Platform Specific Boards category; Hello all im trying to implement horizontal scrollbar in listbox windows with out any success this is how my create ...

  1. #1
    Registered User
    Join Date
    Mar 2008
    Posts
    58

    horizontal scrollbar in listbox

    Hello all
    im trying to implement horizontal scrollbar in listbox windows
    with out any success
    this is how my create list box looks like :
    Code:
      // Create a child listbox control.
            hWndList = CreateWindowEx(0,
                            "Listbox",
                            "",
                            WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL | LBS_NOINTEGRALHEIGHT,
                            0,
                            0,
                            CW_USEDEFAULT,
                            CW_USEDEFAULT,
                            hWndMain,
                            NULL,
                            hinstance,
                            NULL);
    and it does create the scroll bar , but when i try to capture the event (WM_HSCROLL)
    that looks like this :
    Code:
     case WM_HSCROLL:
          {
             int nScrollCode = (int) LOWORD(wParam);  // scroll bar value
             int nPos = (short int) HIWORD(wParam);   // scroll box position
    		  
             SetScrollPos(hWndList,
                          nScrollCode,
                          nPos,
                          true);
    		  
    		 
          }
    but the scroll bar does not moving any where when i click or try to move it to the right .
    what im missing here ?

  2. #2
    Registered User
    Join Date
    Dec 2007
    Posts
    213
    I believe you need to send the LB_SETHORIZONTALEXTENT message to the list box.

  3. #3
    Registered User
    Join Date
    Mar 2008
    Posts
    58

    where do i need to do it ?

    And how ?

  4. #4
    Registered User
    Join Date
    Dec 2007
    Posts
    213
    Google is your friend. Do some research yourself.

  5. #5
    Registered User
    Join Date
    Sep 2010
    Posts
    1
    Quote Originally Posted by umen242 View Post
    Hello all
    im trying to implement horizontal scrollbar in listbox windows
    with out any success
    this is how my create list box looks like :
    Code:
      // Create a child listbox control.
            hWndList = CreateWindowEx(0,
                            "Listbox",
                            "",
                            WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL | LBS_NOINTEGRALHEIGHT,
                            0,
                            0,
                            CW_USEDEFAULT,
                            CW_USEDEFAULT,
                            hWndMain,
                            NULL,
                            hinstance,
                            NULL);
    and it does create the scroll bar , but when i try to capture the event (WM_HSCROLL)
    that looks like this :
    Code:
     case WM_HSCROLL:
          {
             int nScrollCode = (int) LOWORD(wParam);  // scroll bar value
             int nPos = (short int) HIWORD(wParam);   // scroll box position
    		  
             SetScrollPos(hWndList,
                          nScrollCode,
                          nPos,
                          true);
    		  
    		 
          }
    but the scroll bar does not moving any where when i click or try to move it to the right .
    what im missing here ?


    use this

    HWND h_ListBox;

    h_ListBox = CreateWindow(
    _T("LISTBOX"),
    _T(""),
    (WS_HSCROLL | WS_VSCROLL | WS_CHILD | WS_VISIBLE | WS_TABSTOP),
    10,10,270,160,
    hWnd,
    (HMENU)8004,
    GetModuleHandle(NULL),
    NULL
    );

    int SizeOfHBListBox = 1024;
    SendDlgItemMessage(hWnd,8004,(UINT) LB_SETHORIZONTALEXTENT,(WPARAM)SizeOfHBListBox,(LP ARAM)0);
    Last edited by Rishi Aneja; 09-17-2010 at 01:26 AM.

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