Ding sound while tabbing in superclassed edit control - winapi - windows7 - winapi

Question

Its been asked before, but what I found was either mfc, or was not for a superclassed control, or maybe my keyword choice was not good(my vocabulary is limited)
I am developing in pure win32 and c++ in Devc++. I have a few Edit controls superclassed where Tab key presses and Return key presses are controled, but whenever I press Tab there is this Ding sound which is very annoying, not sure it is there because I am doing something wrong or what. Anyway, how do I remove it ?
This is my first attempt at superclassing, so if you have any other advice regarding the code, please let me know
Code:
LRESULT APIENTRY EditSuperClassWndProc ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
switch (message)
{
case WM_KEYDOWN:
if ( isMyScreen )
{
if ( (int)wParam == VK_RETURN )
{
DWORD wparam = MAKELONG( 0, BN_CLICKED );
SendMessage( GetParent( hwnd ), WM_COMMAND, (WPARAM)wparam, (LPARAM)hButton );
}
else if ( (int)wParam == VK_TAB )
{
HWND nextInLine;
if( hwnd == hEditP )
nextInLine = hEditL;
else if ( hwnd == hEditL )
nextInLine = hEditP;
SendMessage( nextInLine, EM_SETSEL, (WPARAM)0, (LPARAM)-1 );
SetFocus( nextInLine );
}
else
{
return CallWindowProc( oldWndProc, hwnd, message, wParam, lParam );
}
}
return CallWindowProc( oldWndProc, hwnd, message, wParam, lParam );
break;
default:
return CallWindowProc( oldWndProc, hwnd, message, wParam, lParam );
}
}

Answer 1

Try adding the following code to your switch block:
case WM_CHAR:
if (wParam == VK_TAB)
{
return 0;
}
else
{
return CallWindowProc(oldWndProc, hwnd, message, wParam, lParam );
}
break;