Spin Control Notification

I have a spin control for which I need to execute a particular function AFTER the user has released the button (up or down) on the spin control... that is, I do not want to do this function for each iteration of the spin control... ONLY when the spin control has stopped incrementing. The only message handlers I see that are offered by the MFC ClassWizard are NM_OUTOFMEMORY and UDN_DELTAPOS. Neither of these seems to be what I need.

How can I know that the spin control has changed its buddy CEdit control AND that the spin control is not continuing to increment?

If you are from Washington (state), take a run to Redmond WA and ask the MS fellows. :D
Now serious...
After sending UDN_DELTAPOS (in that the position is not changed yet), a WM_VSCROLL or WM_HSCROLL is also sent.
See the example below. I hope this solves your problem.

Code:

---

void CADialog::OnDeltaposSpin1(NMHDR* pNMHDR, LRESULT* pResult)
{
  NM_UPDOWN* pNMUpDown = (NM_UPDOWN*)pNMHDR;
  // the position is not changed yet, so
  // keep in mind the old position
  m_iPos = pNMUpDown->iPos;
       
  *pResult = 0;
}
void CADialog::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
  if(pScrollBar->m_hWnd == m_spin.m_hWnd)
  {
      if(SB_THUMBPOSITION == nSBCode)
      {
        if( m_iPos == nPos )
        {
            // the position was not changed, so...
            AfxMessageBox( _T("Bau!!!") );
            return;
        }
      }
  }
  CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}

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Thanks ! I will give this a try...

THANKS ovidiucucu !

With one minor change, this does exactly what I need.

I had to change

if(SB_THUMBPOSITION == nSBCode)

to

if(SB_ENDSCROLL == nSBCode)

Sford or Ovidiucucu:
I'm trying to do the same thing in VC++6, but till now i can't , Ovidiucucu you said that after sending UDN_DELTAPOS a WM_VSCROLL or WM_VSCROLL is sent , so for spin control (not scroll bar) WM_VSCROLL and WM_VSCROLL are sent too? .Only to see if this is happening in my app ,i wrote:

Code:

---

void CADialog::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
 
            // the position was not changed, so...
            AfxMessageBox( _T("Bau!!!") );
            return;
  CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}

---

i think that with this every time the i touch de spin, the message box should apperas, but it doesn't. The code compiles with no erros.
What is wrong ?

Quote:

---

Originally Posted by Timbk

Sford or Ovidiucucu:
I'm trying to do the same thing in VC++6, but till now i can't , Ovidiucucu you said that after sending UDN_DELTAPOS a WM_VSCROLL or WM_VSCROLL is sent , so for spin control (not scroll bar) WM_VSCROLL and WM_VSCROLL are sent too? .Only to see if this is happening in my app ,i wrote:

Code:

---

void CADialog::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
 
            // the position was not changed, so...
            AfxMessageBox( _T("Bau!!!") );
            return;
  CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}

---

i think that with this every time the i touch de spin, the message box should apperas, but it doesn't. The code compiles with no erros.
What is wrong ?

---

Did you create the corresponding message map entry for OnVScroll?

:) Nice, the message map entry was wrong , now works nicely. 1 day to solve this :( , anyway this is how it looks now
header file

Code:

---

afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);

---

Source file
Message map

Code:

---

ON_WM_VSCROLL()

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And handler

Code:

---

void CCalibracionDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
  if(SB_ENDSCROLL == nSBCode)
  {
      if(pScrollBar->m_hWnd == m_Spin1m_hWnd)
      {
            // the position was not changed, so...
            AfxMessageBox( _T("Termino el Spin1!!!") );
            return;
      }
      if(pScrollBar->m_hWnd == m_Spin2.m_hWnd)
      {
            // the position was not changed, so...
            AfxMessageBox( _T("Termino el Spin2!!!") );
            return;
      }
  }
}

---

Thanks Arjay, where are you from?

Quote:

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Originally Posted by Timbk

Thanks Arjay, where are you from?

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...from a galaxy far, far away.

Quote:

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Originally Posted by Arjay

...from a galaxy far, far away.

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incredible, even that, your posts come so fast !!!

I live in Bellevue, WA - close to Seattle. When I moved there I traded in my light saber for a high speed internet connection.

Jejejej , i thought that, well thanks again, and May the Force be with you, oh no no i have to say May the speed be with you.