Spin Control Notification

[sford]

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?

[ovidiucucu]

If you are from Washington (state), take a run to Redmond WA and ask the MS fellows.
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.

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);
}

[sford]

Thanks ! I will give this a try...

[sford]

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)

[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:

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 ?

[Arjay]

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:

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?

[Timbk]

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

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

Source file
Message map

ON_WM_VSCROLL()

And handler

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?

[Arjay]

Thanks Arjay, where are you from?

...from a galaxy far, far away.

[Timbk]

...from a galaxy far, far away.

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

[Arjay]

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

[Timbk]

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.