Handling WM_SIZING for Dialogs

I have a dialog box implementing Grid view of a Database.
The dialog contains a maximize/minimize button. I'd also
like to implement Onsizing for the Dialog but ClassWizard
does not provide this event for my dialog (It only provides
WM_SIZE which is good only for minimize/maximize).

ClassWizard however provides this event for the ActiveX control
that owns the dialog.

How do I proceed with this quest? Any pointers appreciated.
hakeem042997Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

tflaiCommented:
I'm not sure what you mean.  But you can resize a dialog box by changing its border style from "dialog frame" to "resizing".  In your WM_SIZE's OnSize() handler, you will know what size the user is setting it to be, and you can re-size/re-arrange controls in the dialog box.  Catch WM_GETMINMAXINFO to set the maximum/minimum size if you want to do it.
(WM_SIZE is sent whenever dialog is re-sized, not only on maximize/minimize.)
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
hakeem042997Author Commented:
Thanks. But WM_GETMINMAXINFO is not available to be handled for my
dialog. It's only available ffor the ocx. Now is it enough to just
override OnGetMinMaxInfo() and call that inside OnSize().

More info appreciated.
0
tflaiCommented:
Add DefWindowProc() handler for your dialog box in the class wizard:

CMyDialogBox::DefWindowProc(.....)
{
.....
.....
case WM_GETMINMAXINFO:
      lppt = (LPPOINT)lParam;   // lParam points to array of POINTs
      lppt[3].x = MinDialogSize.x;
      lppt[3].y = MinDialogSize.y;
      lppt[4].x = MaxDialogSize.x;
      lppt[4].y = MaxDialogSize.y;
      return DefWindowProc(hWnd, message, wParam, lParam);
      break;
.....
.....
0
Amazon Web Services

Are you thinking about creating an Amazon Web Services account for your business? Not sure where to start? In this course you’ll get an overview of the history of AWS and take a tour of their user interface.

hakeem042997Author Commented:
Thanks again, tflai. Looks like what 'am looking for.
0
hakeem042997Author Commented:
Thanks again, tflai. Looks like what 'am looking for.
0
hakeem042997Author Commented:
Thanks again, tflai. Looks like what 'am looking for.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
System Programming

From novice to tech pro — start learning today.