Hello!
Today I will show you how to add a tool tip for dialog control and a balloon tip for an edit box.
 
  
  
 
 
Today I will show you how to add a tool tip for dialog control and a balloon tip for an edit box.
- Create a MFC Dialog Preject.
- Add following control to the dialog.
3.   Open BlogTest2Dlg.h and add CToolTipCtrl
*m_pToolTip; as private.
Private:
CToolTipCtrl *m_ToolTip;
4.     
Open BlogTest2Dlg.cpp and add following on OnInitDialog();
function.
BOOL CBlogTest2Dlg::OnInitDialog()
{
                …….
     // TODO: Add extra initialization here
     m_pToolTip = new CToolTipCtrl();
     if (!m_pToolTip->Create(this))
     {
           TRACE(L"Unable to create
ToolTipCtrl.\r\n");
           return TRUE;
     }
     if
(!m_pToolTip->AddTool(GetDlgItem(IDOK), L"This is OK Button."))
     {
           TRACE(L"Unable to add OK
Button.");
           return TRUE;
     }
     if
(!m_pToolTip->AddTool(GetDlgItem(IDCANCEL), L"This is Cancel
Button."))
     {
           TRACE(L"Unable to add Cancel
Button.");
           return TRUE;
     }
     if
(!m_pToolTip->AddTool(GetDlgItem(IDC_EDIT1), L"Try to insert key '5'
and will summon balloon."))
     {
           TRACE(L"Unable to add Edit
Control.");
           return TRUE;
     }
     m_pToolTip->Activate(TRUE);
…
}
}
5.      
Add PreTranslateMessage Function, add following
code.
BOOL
CBlogTest2Dlg::PreTranslateMessage(MSG* pMsg)
{
                if
(m_pToolTip != NULL)
                                m_pToolTip->RelayEvent(pMsg);
                return
CDialogEx::PreTranslateMessage(pMsg);
}
Done with ToolTip. Now go for Balloon Tip.
1.      
Add a new MFC Class “CBalloonEdit” and the base
class is “CEdit” from Class Wizard.
2.      
Add WM_CHAR Message handler.
3.      
Add following Code OnChar Function.
void CBalloonEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
        if (nChar == 0x35)
        {
                        ShowBalloonTip(L"Unacceptable
Character", L"The Number 5 will summon the Balloon.",TTI_INFO);
                        return;
        }
        CEdit::OnChar(nChar,
nRepCnt, nFlags);
}
4.      
Add CBalloonTip Variable on BlogTest2Dlg.h
CBalloonEdit m_baloonEdit;
Also Include BalloonEdit.h on the BlogTest2Dlg.h
5.      
Add following code to 
void CBlogTest2Dlg::DoDataExchange(CDataExchange* pDX)
{
        CDialogEx::DoDataExchange(pDX);
        DDX_Control(pDX, IDC_EDIT1,
m_baloonEdit);
}
Now build and run the program. You should have following
output.
Thanks.


 
No comments:
Post a Comment