Solved

GetUpDown, from CSpinButtonCtrl

Posted on 2001-06-12
8
819 Views
Last Modified: 2013-11-20
Hi, I can get the pos.. by caling CSpinButtonCtrl.GetPos(), But I don't need it.. All I need to know is, if I hit the UP, or DOWN button...

How is that done ?

What I've done now is, somthing lik this

If(OldPop<NewPos)POS_IS_INCREASED = true;

But the programming looks bad, can't I get a flag, that tels me if its up, or down ???

CB.
0
Comment
Question by:win32
  • 3
  • 2
  • 2
  • +1
8 Comments
 
LVL 6

Expert Comment

by:MichaelS
ID: 6180957
You have to take a look at UDN_DELTAPOS message. It's sould arrive to the parent of you Spin control in the form of WM_NOTIFY message.

lParam of the message is a pointer to the NMUPDOWN structure where you have to check iDelta value. This is a change you need.
0
 
LVL 2

Expert Comment

by:MadYugoslav
ID: 6180966
CSpinButtonControl sent notify message UDN_DELTAPOS.
Get that message from Your control and You will have as lParam struct NMUPDOWN.
struct
{
    NMHDR hdr;
    int   iPos;// current position
    int   iDelta;// proposed change in position
} NMUPDOWN;
0
 
LVL 42

Accepted Solution

by:
sedgwick earned 50 total points
ID: 6181106
add UDN_DELTAPOS message handler using the wizard:

void CZ3LicenseGenDlg::OnDeltaposUserSpin(NMHDR* pNMHDR, LRESULT* pResult)
{
     NM_UPDOWN* pNMUpDown = (NM_UPDOWN*)pNMHDR;
     if(pNMUpDown->iDelta > 0)
     {
//spin up
     }
     else
     {
//spin down
     }
     UpdateData();
     
     *pResult = 0;
}

good luck
0
 

Author Comment

by:win32
ID: 6181651
How do I find, UDN_DELTAPOS... ?
if (HIWORD (wParam) == UDN_DELTAPOS) MessageBox("Test");

Like this or how, is it to be found ?
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 

Author Comment

by:win32
ID: 6181685
Sorry. I found it !!
0
 
LVL 6

Expert Comment

by:MichaelS
ID: 6181711
As I said it gets sent in the form of WM_NOTIFY message. So it sould be something like that:

CYourDlg::OnWmNotify(...)
{  if(HOWORD(wParam) == UDN_DELTAPOS)
       MessageBox("text");
}
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 6181715
win32:

add this declaration to the .h file:

add this code to the MESSAGE MAP in the .cpp:

BEGIN_MESSAGE_MAP(...)
.
.
ON_NOTIFY(UDN_DELTAPOS, IDC_USER_ID_SPIN, OnDeltaposUserIdSpin)
.
.
END_MESSAGE_MAP()


IDC_USER_ID_SPIN-> is the spin control resource ID

the callbacl function of the spin control:
void CMyDlg::OnDeltaposUserIdSpin(NMHDR* pNMHDR, LRESULT* pResult)
{
     NM_UPDOWN* pNMUpDown = (NM_UPDOWN*)pNMHDR;

     if(pNMUpDown->iDelta > 0)
{
//up
}
     else
{
//down
}    

     UpdateData();
     
     *pResult = 0;
}

thats it...
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 6181730
add this declaration to the .h file:

     afx_msg void OnDeltaposUserIdSpin(NMHDR* pNMHDR, LRESULT* pResult);

now its ok....

cheers mate
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Here is how to use MFC's automatic Radio Button handling in your dialog boxes and forms.  Beginner programmers usually start with a OnClick handler for each radio button and that's just not the right way to go.  MFC has a very cool system for handli…
Introduction: Dynamic window placements and drawing on a form, simple usage of windows registry as a storage place for information. Continuing from the first article about sudoku.  There we have designed the application and put a lot of user int…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now