[RESOLVED] working with slider bar

[rowgram]

I've got an MFC app that uses afx messaging.

I have a slider whose position I monitor using the OnHScroll function. It works...too well
As soon as I click on the slider, it enters the OnHScroll function. I don't get a chance to move it my desired new position. What I want is to be able to grab the slider with the mouse, move it to a new position, release the mouse, and have the function retreive this final position.

Is there a neat & simple way to modify my code below to do this ?

void TestDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
	int x;

	x= m_Slider.GetPos();

    // do some stuff with x
   
 }

m_Slider is of type CSliderCtrl.
My message map contains ON_WM_SCROLL.

Thanks,
ak

[GCDEF]

Are you checking the nSBCode that's getting passed to your handler? Look for the value SB_ENDSCROLL.

[rowgram]

Thanks - that works !
I just used an if(nSBCode == SB_ENDSCROLL) statement to only perform my operations when SB_ENDSCROLL has been flagged.

One more minor issue -

When I start my application I want the slider bar to start off in position 4. Here's my initialization function :

BOOL TestDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu....

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog...

	m_Slider.SetPos(4);                 // setting the initial slider position
	m_Slider.SetRange(0,7);

    // other control settings ...

    UpdateData(FALSE);

	return TRUE;
}

But instead it starts off elsewhere like 0 & as soon as I click the slider with the mouse it hops over to position 4.

How can I make it start at 4 without having to click on the control ?

ak

[GCDEF]

Thanks - that works !
I just used an if(nSBCode == SB_ENDSCROLL) statement to only perform my operations when SB_ENDSCROLL has been flagged.

One more minor issue -

When I start my application I want the slider bar to start off in position 4. Here's my initialization function :

BOOL TestDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu....

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog...

	m_Slider.SetPos(4);                 // setting the initial slider position
	m_Slider.SetRange(0,7);

    // other control settings ...

    UpdateData(FALSE);

	return TRUE;
}

But instead it starts off elsewhere like 0 & as soon as I click the slider with the mouse it hops over to position 4.

How can I make it start at 4 without having to click on the control ?

ak

Try SetRange first.