MMF2 - Screen Scrolling Problem

[droberson]

Here you can see that I have a frame that is 1536 high or twice the application size of 1024 wide X 768 high. Notice the Next Page button which when click changes the frame y corrdinate from 0 to -300. Notice also that there is background and datagrid
above and below the dotted line which is at the 768 pixels range.



Here is the frame running and looks fine.



On click the Next Page button the frame is scrolled up 300 pixels
to show the problem of nothing on the frame appearing below the dotted line. But notice in the frame editor (screen01) there is stuff that should be showing.



Is this an error with MMF2 or do I have something set wrong?

[Jeff]

Hard to say looking at screenshots.

If you want to upload your MFA I am sure someone can help you out.

[byo]

That looks very professional.

[Jeff]

I was playing around as it was an interesting idea.

I am not sure how you are doing the scrolling but I did it with a path movement like this. Not sure if you wanted to show the scrolling or just jump to the next section.

http://www.flyin.com/mmfexamples/scrolling_option.mfa

[Jeff]

I was just playing around with doing the same thing playing with settign the Y cordinate and it also worked fine.

I think you just might not have calculated out the right Y cordinate to set it to and its not scrolling down far enough.

For example
In my above example I removed the active and just used the commands under the Set verticle position of window in frame

The first next page set it to 720
The second next page set it to 1200
The top of page set the it to 240

If you want an example showing this just yell

[Dynasoft]

That's for 480 high, he's using 768 high.

Try 384, 1152, 1920

[Jeff]

Yes I understand he is using a different size frame but I am just posting general ideas that can be adapted to people wanting to do this with other sizes.

It was more of a methods to accomplish the task rather then specific to his project but perhaps I should have used his frame size to avoid confusion

[droberson]

My original idea was to use the EasyScrollBar but ran into problems of the white area covering over the bottom of the scrollbar as the frame scrolled upward. So I deleted it and just tried using buttons. I would really prefer to the able to use the scrollbar if possible. I would really like a normal window and frame to work like if you turn on the MDI interface.
Very smooth scrolling of the large frame.

Thanks for the example, I'll give it a try. In my frame scrolling attempts so far I have just been trying to change
the y coordinate of the frame. But it sounds like I am missing the center frame events. I'll let you know.

I just read the other posts. I see you are changing the Windows position on the frame where I was trying to change the frame position within the Window.

[droberson]

OK, with Jeff's example I got it working. You have the set the center point of the window with the EasyScrollBar or Buttons.

You cannot just set he y coordinate of the frame to a negative number. Would be a lot easier if you could or if you could 'get'
the center point x or y coordinates versus having to compute them.

A little tricky with the EasyScrollBar but it works.

I have a sample .mfa if anyone needs it.