How to restrict window resizing by user

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How can i stop user from resizing window upto certain limit? I do want to allow user for resizing a window upto some certain limit. If User try to resize window beyond that limit, program must not allow him to do so.

Posted 1-Mar-10 19:24pm

AJ83

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10 solutions

Solution 12

Done !! Thanks a lot.

But i have change limit.

lpMMI->ptMinTrackSize.x = 1000; 
lpMMI->ptMinTrackSize.y = 700;

in place of

lpMMI->ptMaxTrackSize.x = 1000; 
lpMMI->ptMaxTrackSize.y = 700;

I have done this change because i do want to stop user from resizing from maximum to minimum. not from minimum to maximum.

Posted 2-Mar-10 0:59am

AJ83

Solution 11

Is there a stop at some breakpoint inside the function OnGetMinMaxInfo ? :)

Posted 2-Mar-10 0:47am

Eugen Podsypalnikov

Solution 2

Thanks for your reply but this idea is not working.

Posted 1-Mar-10 22:35pm

AJ83

Solution 4

Hello Eugen,

I tried with your code but it is giving me "Debug Assertion Failed". Somewhere i am missing something.

what would be m_cMaxRect?

Posted 1-Mar-10 23:19pm

AJ83

Solution 6

Eugen, Problem not solved.
User is able to resize window. window is not limiting to certain limit.

Posted 1-Mar-10 23:30pm

AJ83

Solution 7

In visual studio , you when you select a Form, in the properties, you can see a Field called Maximum Window size. you can give a maximum size in pixels. so the user cant increase that value.

Posted 1-Mar-10 23:42pm

aswathstorm

Solution 8

Storm, I am using MFC Application in VS 2003. The property which are you talking about in not available in this. so i am not able to set property which you were talking about.

Posted 1-Mar-10 23:50pm

AJ83

Solution 10

Eugen, I also implemented this logic. but i did not get success in this. May be i was doing something wrong. After implementing your mentioned function, how to use this? can you tell me?

Posted 2-Mar-10 0:28am

AJ83

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Avi Berger · Accepted Answer · 2010-03-01T19:45:00

Solution 1

Override CWnd::OnGetMinMaxInfo. See here[^] for a whole discussion about it.

Posted 1-Mar-10 19:45pm

Avi Berger

Eugen Podsypalnikov · Accepted Answer · 2010-03-01T23:51:00

Solution 9

Sorry :)

C++

BEGIN_MESSAGE_MAP(CYourWnd, CBaseOfYouWnd)
  //{{AFX_MSG_MAP(CYourWnd)
...
  ON_WM_GETMINMAXINFO()
  //}}AFX_MSG_MAP
END_MESSAGE_MAP()
    
void CYourWnd::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
  lpMMI->ptMaxTrackSize.x = 400;
  lpMMI->ptMaxTrackSize.y = 200;
}

Posted 1-Mar-10 23:51pm

Eugen Podsypalnikov