Problem!

Hello

Code:

 
unsigned int idx;
        LPSTR itemData;
 
        idx = SendDlgItemMessage(hWnd, BONENAMES, LB_GETCURSEL, 0, 0);
 
        if(idx != -1) {
            int iResult = SendDlgItemMessage(hWnd, BONENAMES, LB_GETITEMDATA, idx, (LPARAM)itemData);
//itemData = SendDlgItemMessage(hWnd, BONENAMES, LB_GETITEMDATA, idx, 0); Not Works too.
        }
 
        MessageBox(NULL, itemData, "Selected Item:", MB_OK);

The Message Box Shows Empty. Why?
Thanks in Advance!

 

See http://msdn.microsoft.com/en-us/library/aa929823.aspx

Setting itemData in lParam is pointless because this is ignored.
LB_GETITEMDATA returns the 32-bit value associated with the selection, NOT the text from the listbox.
So if you associate "one" with 1, "two" with 2 and "three" with 3, and the user selects "two", then LB_GETITEMDATA will return 2. This is an integer, not a string, so cannot be displayed directly with MessageBox; you would need to convert it to a string first (e.g. with sprintf).

 

Thanks!
I found it to do with LG_GETTEXT