horizontal scrollbar in listbox

umen242 · 06-30-2009, 02:40 AM

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 ?

DaveH · 06-30-2009, 07:02 AM

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

umen242 · 06-30-2009, 07:42 AM

And how ?

DaveH · 06-30-2009, 08:40 AM

Google is your friend. Do some research yourself.

06-30-2009, 02:40 AM	#1
umen242 Registered User Join Date: Mar 2008 Posts: 57	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 ?
umen242 is offline

06-30-2009, 07:02 AM	#2
DaveH Registered User Join Date: Dec 2007 Posts: 146	I believe you need to send the LB_SETHORIZONTALEXTENT message to the list box.
DaveH is offline

06-30-2009, 07:42 AM	#3
umen242 Registered User Join Date: Mar 2008 Posts: 57	where do i need to do it ? And how ?
umen242 is offline

06-30-2009, 08:40 AM	#4
DaveH Registered User Join Date: Dec 2007 Posts: 146	Google is your friend. Do some research yourself.
DaveH is offline

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