With a script, how to scroll to the top in an interactive PDF container?

[HuConn]

Hi,

As far as I have tested, the issue is a Mac OS problem only.

• I am loading A4 PDF files into a container field using the MBS plugin.
• The height of the Interactive container I use for displaying it is smaller than that of a portrait A4. (width x height = 870 x 744, so I only have a vertical scrollbar).
• When first displayed, the PDF is scrolled down to show the centre of it, while I want it to show the top. (The documents are not images but standard pages with text).

I can manually fix this by clicking in the field and then pressing Page up, and I am now trying to emulate that in the script loading the PDF from the disk.

In the script, I go to the Object, no problem, but I can't emulate the Page up key.
First, is there an easy solution to this problem I missed? Something already there I am unaware of?

What I have done so far:
I am using the MBS plugin extensively and have tried the function RemoteControl.PressKey, and get it to work in text fields.
I have verified that the virtual key is
kVK_PageUp = 0x74, decimal 116,
and that key should be keyboard independent. (My customers and I use Swedish keyboards).
MBS( "RemoteControl.PressKey" ; 74 )
MBS( "RemoteControl.PressKey" ; "#74" )
MBS( "RemoteControl.PressKey" ; 116 )
I know what Scan codes are, but I have never worked with them. The example in the documentation for pressing the return key is:
MBS( "RemoteControl.PressKey"; 36; 13)
I recognise 13 = #0D for a carriage return, but what is 36?
I am sure I am missing something vital here.

A frustrating problem, such a small thing, and I have already spent a lot of time trying to solve it. So any help or insights would be much appreciated! Thanks!

[MonkeybreadSoftware]

FileMaker version 2023?

With current MBS Plugin, you can name the layout item and use our web viewer scroll functions.

e.g.
MBS("WebView.Scrollbar.getVerticalPosition"; "container")

and scroll to top:
MBS("WebView.Scrollbar.set"; "web"; 0; 0)

[HuConn]

Thanks!

No, FileMaker 18 and 19.

That was a completely different way to go, and I will try that during the weekend

[HuConn]

I have now tested and realised that the functions suggest is for a MBS web viewer, while I need to get it to work in an interactive (PDF) container inside FileMaker.

Any more suggestions? Anyone know the virtual key and scan code for Page up on Mac OS?

[MonkeybreadSoftware]

an interactive PDF container in FileMaker is a web viewer, so our MBS WebView functions work with it!

I just tested in FileMaker 18 on macOS here.

Set Variable [ $r ; Value: MBS("WebView.Scrollbar.set"; "container"; 0; 0) ]

This works. And I named the layout object container to show the interactive container:

[HuConn]

Thank you for the clarification about the interactive PDF container! I didn't know that.

Then I am sorry to say that I can't get it to work. I did as you said, but the vertical position is always returned as 0 even though it is not. I also made a new database, included, with only a container field with the same result.

I guess I miss some vital piece of the puzzle or is doing something wrong, but I cant't figure it out and have tested with all I can think of. (The test is made with FileMaker 18 on Mac OS).

Script:

Layout:

Result:

Scroll PDF.fmp12.zip (464.1 KB)

[MonkeybreadSoftware]

Old plugin maybe?
I fixed this for 13.2, I think.

[HuConn]

Now I got time to test, and you are right!
I was running 13.1.0.07 from March, and after updating the content is scrolled to the top.
(Only the content and not the scrollbar moves, but for me that is not a problem).

Many thanks!