VS 2017 C++ cannot sccroll view

Charles Sterbakov 21

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I am having a problem with scrolling my view (single document, only one view). In older versions of mfc I used the following coding to set the scroll:

void CNewAccounting1SView::OnInitialUpdate()
{
CScrollView::OnInitialUpdate();
CSize sizeTotal;
sizeTotal.cx = 4700;
sizeTotal.cy = 1100;
SetScrollSizes(MM_LOENGLISH, sizeTotal);
}
However, SetScrollSizes is not recognized in VS2017.

I have tried using a number of different possibilities, including getscrollinfo and setscrollinfo, getscrollrange and setscrollrange plus a number of other Methods and have also tried changing my view from CView to CScrollView.

I create a report in my view (about 6-8 pages). It prints correctly, but I need to see the entire report.

I would very much appreciate it if you could show me some sample coding that solves my problem.

Charlie S.

David Lowndes 4,716 Reputation points

2020-09-08T15:17:55.313+00:00

SetScrollSizes should still be valid, what do you mean by "not recognized"?
Are you getting a compilation error?
Charles Sterbakov 21 Reputation points

2020-09-08T21:32:19.093+00:00

Get compiler error
Severity Code Description Project File Line Suppression State
Error C3861 'SetScrollSizes': identifier not found CSPAccounting17
David Lowndes 4,716 Reputation points

2020-09-08T23:00:55.103+00:00

I don't see why that should be - assuming your class is derived from CScrollView.
Check the MFC header (afxwin.h), Its CScrollView should have a public SetScrollSizes defined.
Charles Sterbakov 1 Reputation point

2020-09-10T19:01:25.26+00:00

I amm using the view created when the project was created. If I change the view to be inherited from CScrollView, it builds without an error, but an error message appears when I start the program.
Viorel 117.9K Reputation points

2020-09-10T19:48:28.53+00:00

What error do you get after changing manually the base CView to CScrollView, editing the corresponding IMPLEMENT_DYNCREATE and BEGIN_MESSAGE_MAP definitions, changing ‘CView::…’ to ‘CScrollView::…’ in several places, and adding the shown OnInitialUpdate function that calls SetScrollSizes?
Charles Sterbakov 1 Reputation point

2020-09-10T21:44:08.8+00:00

When I build in debug mode I get the message 'Debug Assertion Failed'
Program: mfc140ud.dll
File: viewscrl.c
Line: 387

When I build in release mode I do not get the message, but whenever anything is written to the view it continues to flash as if the page is constantly being redrawn. This could be from my coding but it does not occur when not using CScrollView.
I used a global search for CView to insure that all occurrences of have been changed to CScrollView. Is it possible that in some places CView should still be used?
Charles Sterbakov 1 Reputation point

2020-09-10T21:55:01.783+00:00

When I build in debug mode I get the message 'Debug Assertion Failed'
Program: mfc140ud.dll
File: viewscrl.c
Line: 387

When I build in release mode I do not get the message, but whenever anything is written to the view it continues to flash as if the page is constantly being redrawn. This could be from my coding but it does not occur when not using CScrollView.
I used a global search for CView to insure that all occurrences of have been changed to CScrollView. Is it possible that in some places CView should still be used?
Viorel 117.9K Reputation points

2020-09-11T08:43:16.057+00:00

This error seems to mean that you did not call SetScrollSizes or SetScaleToFitSize (or the function were not achieved yet for some reasons).

You can also try re-generating a new project using Wizard, this time specifying CScrollView instead of CView. Use it for investigations or even to copy the code from old project.
Charles Sterbakov 1 Reputation point

2020-09-11T20:09:44.513+00:00

My fault!!
In order to keep working I had comment out SetScrollSizes. Works fine now!!
Thank you!

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VS 2017 C++ cannot sccroll view

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