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 ?

I believe you need to send the LB_SETHORIZONTALEXTENT message to the list box.

And how ?

Google is your friend. Do some research yourself.

Quote:

---

Originally Posted by umen242

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);