Create tooltip win32 api (Just API not MFC)

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Hey every one!
I have a rich edit (only show paragraph text)
When i select a text by move mouse, i want to show this selected text by using message box ass following code:

C++

case WM_KEYDOWN:
    if (wParam == VK_RETURN) 
    {
        wchar_t *wcWordSelect = new wchar_t[200];
	SendMessage(hWnd, EM_GETSELTEXT, SCF_SELECTION, (LPARAM)wcWordSelect);
	MessageBox(NULL, wcWordSelect, L"MSG", NULL);
    }
    break ;

But my task is show selected by using tooltip
Please help me show this text using tooltip
I known how to make tooltips for button, ballon toolbar but i dont known how to do my task
Thank for your help!!

Posted 2-Jan-13 22:35pm

nguyen duc huan

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Richard MacCutchan · Answer 1 · 2013-01-02T23:01:00

Solution 1

A MessageBox is not very useful as it requires action from the user to close it. Take a look at the MSDN documentation[^] on tooltips.

Posted 2-Jan-13 23:01pm

Richard MacCutchan

Đức Huấn Nguyễn · Answer 2 · 2013-01-03T04:26:00

Yes, i can show tooltip for a button such as:

C++

case WM_NOTIFY:
{
    switch (((LPNMHDR) lParam)->code)
    {
        case TTN_NEEDTEXT:
        {
            LPTOOLTIPTEXT lptttext;
            lptttext = (LPTOOLTIPTEXT) lParam;
            lptttext->hinst = g_hInst;
            switch(lptttext->hdr.idFrom)
            {
            case ID_BUTTON1:
                {
                    lptttext->lpszText = L"Tooltip button 1";
                }break;
            }
        }
    }
}
break;

And the code below here show the selected text using message box (I create a procedure for rich edit controll)

C++

LRESULT FAR PASCAL RichEditProc(HWND hWnd,
                                UINT Message,
                                WPARAM wParam,
                                LPARAM lParam)
{
    wchar_t *wcWordSelect = new wchar_t[MAX_LENG_WORD];
    switch(Message)
    {
    case WM_CHAR:
        //Process this message to avoid message beeps.
        if ((wParam == VK_RETURN) || (wParam == VK_TAB))
        {
            //Do Something
            return 0;
        }
        break;
    case  WM_RBUTTONDOWN:
        {
            SendMessage(hWnd, EM_GETSELTEXT, SCF_SELECTION, (LPARAM)wcWordSelect);
            MessageBox(NULL, wcWordSelect, L"MSG", NULL);
            CreateToolTipForRect(hWnd);
        }
        break;
    case WM_KEYDOWN:
        if (wParam == VK_RETURN)
        {
            SendMessage(hWnd, EM_GETSELTEXT, SCF_SELECTION, (LPARAM)wcWordSelect);
            MessageBox(NULL, wcWordSelect, L"MSG", NULL);
            return 0;
        }
        break ;

    default:
        break;
    }
    return CallWindowProc((WNDPROC)lpfnOldWndProc, hWnd, Message, wParam, lParam);
}

My QUESTION is: how can i use tooltip insted of using message box to show 'wcWordSelect' variable?
Thank for your help!!