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Version 3.94                     First Published 10 Mar 2019                              Last Updated 26 Apr 2023                           Difficulty level:     Moderate

Section Links (this page):
        What is AFR?
        Layout Guides
        Using Automatic Form Resizing
        Design with the form resizer
        Set default form size
        YouTube Videos

1.   Introduction                                                                                                                                                                 Return To Top

The previous update to version 3.90 provided a major update to my series of articles about automatic form resizing in Access

In that version, the example database was significantly updated with many new features including:

a)   support for high resolution monitors e.g. 3840 x 2160 to handle possible issues related to the maximum permitted form width
b)   improved support for portrait monitors e.g. 1080 x 1920 resolution
c)   added code to allow forms & controls to be stretched/shrunk 'on the fly'
d)   added code to refresh display when forms are moved to a secondary monitor with a different size/resolution
e)   improvements to zoom form code
f)   added code to allow scaling of command button images
g)   two additional template forms

All three pages of the existing article were updated with additional information and new images.
In addition, a completely new page was added which discusses the latest features in detail.

The latest update to version 3.94 simplifies some of the code to make it easier for users to apply the latest features in their own applications.
It also fixes an issue with boolean variables for non-English language Office users

If you are new to the ideas behind automatic form resizing, I strongly recommend you read each article in turn BEFORE using this code in your own applications

However, those who are experienced in the use of this automatic form resizing code may wish to go directly to the new features which are discussed in detail on Page 4

2.   What is automatic form resizing and why is it useful?                                                             Return To Top

If all your applications will only be used with the same monitor and resolution, there is no benefit in using automatic form resizing.
However if you are designing applications for use with a variety of different display options, it may be exactly the solution you need

Most developers will be aware that forms designed for a specific screen size/resolution may look dreadful on a different monitor with a higher/lower resolution and/or screen size or shape (form factor = 4:3, 16:9 or widescreen)

For example, this form was designed at a low resolution (800*600):


If it is viewed at a higher resolution (1680*1050), it only fills part of the screen and each item is tiny.
This is the result using overlapping windows


Using tabbed documents, the screen is filled but the contents remain squashed in the top left corner


On a smaller screen or lower resolution, the opposite problem occurs with part of the form not shown unless the user scrolls in both directions


The effect is the same whether using overlapping windows or tabbed documents.
So what solutions exist?

3.   Layout Guides and Anchoring                                                                                           Return To Top

Layout guides were added in Access 2007 to help developers create consistent form layouts by grouping controls together.

Some developers find layout guides useful to some extent in managing issues with different screen sizes and resolutions
For example, a stacked layout has been used for these controls. All controls in the group are automatically made the same width.


In addition anchoring can be used to adjust the position/size on the screen.
There are 9 different anchoring options available. In this case Stretch Down and Across anchoring has been applied


The results can be quite successful for simple form layouts.
However, that isn’t necessarily the case for more complex form designs. For example, extra controls have been added in design view:


Depending on the anchoring choices, this may result in this layout (with lots of empty space on the left)


Or another variation - in this case with various controls overlapping / obscured  … etc


With care and practice, reasonable results can still be obtained. However, the process is far from intuitive.
The main issue with this approach is that users do not have full control over positioning and size of each control on the form.

4.   Using Automatic Form Resizing                                                                                       Return To Top

Automatic form resizing code is designed to fix all such issues.
Forms can be automatically resized for any screen size & resolution whilst allowing developers full control over the form layout and appearance.

There are various examples available including commercial packages such as:
1.   Shrinker Stretcher available from
2.   Total Access Components from

However, for many years, I have used a modified version of free open source code by Jamie Czernik originally written in 2003. The original code is still available at though many improvements have since been added by myself and other developers.

This is an identical form to that shown earlier in this article, designed at 800*600 but with form resizing code added.

Firstly, here is the form viewed at a resolution of 1024*768


And again at a resolution of 1440*900


And yet again at a resolution of 1680*1050


And finally on a different sized/shape monitor at a resolution of 1920*1080


As you can see the entire form is shown whatever resolution is used as long as that is the same as or higher than the design 'base resolution'.
The code intelligently enlarges the form itself to fit the screen and moves each control by an appropriate amount to keep the form in proportion.
It also enlarges each control proportionately together with the contents of that control.

The code works for each type of control including subforms. It also works perfectly with 'special forms' such as split forms and navigation forms

1.   The code has been extensively tested with many clients and applications over a period of 17 years.
      It has been used with a wide range of monitors, scaling factors, form factors (screen shapes & resolutions) including 32 inch and 22 inch widescreen monitors,
      15 inch 4:3 and 14 inch 16:9 laptops as well as 12 inch and 10 inch 16:9 Windows tablets

      The latest version of this code released in Dec 2022 has also been optimised to work with large screen, high-resolution monitors e.g. 3840 x 1440 and with
      portrait monitors e.g. 1080 x 1920

2.   When using a maximised form as above, some 'empty space' may be left on the right of the screen.
      This is to allow for different form factors such as 4:3, 5:4, 16:9, 16:10, widescreen  

So what code is needed to work this magic? Just one line in the Form_Load event: ResizeForm Me

Private Sub Form_Load()

      'maximize form

      'auto resize form
      ReSizeForm Me

      'minimize navigation pane

      'show screen resolution
      Me.lblResolution.Caption = GetResolution() & " : " & GetScreenShape() & " (" & GetFormFactor() & ")"

End Sub

OK, I hear you say, surely that can't be all there is to it!   Well not quite...!

Behind the scenes there is a lengthy module modResizeForm which contains all the code required to adjust the forms as required.
This code module is included with the attached example application and has been updated to work in both 32-bit and 64-bit Access.

If you import the module to your own applications and add the above line in the Form_Load events, all forms and their controls will be resized.
However, the results will not be at all successful at first unless the forms were designed with resizing in mind!

It is STRONGLY recommended that you start with new forms and plan for resizing from the start.

5.   Designing with the form resizer                                                                                           Return To Top

As a general rule, you always need to develop using the lowest resolution that your users are likely to have./span>.
Form resizing upwards (stretching) is much easier and has far fewer issues than resizing downwards (shrinking).

The declarations section of the modResizeForm module includes the following lines:

'-----------------------------MODULE CONSTANTS & VARIABLES------------------------------

'Other possible values could include 3840, 1920, 1680, 1440, 1366, 1280, 1024 '800
Private Const DESIGN_HORZRES As Long = 800

'Other possible values could include 1080, 1050, 900, 768
Private Const DESIGN_VERTRES As Long = 600
'NOTE: THE VALUE IS ONLY USED AS A CHECK in the GetCurrentFactor procedure

'Do NOT alter the DESIGN_PIXELS setting UNLESS you are ABSOLUTELY sure
Private Const DESIGN_PIXELS As Long = 96

The first line is the default or baseline horizontal resolution - in this case 800
You can adjust this to any other suitable minimum value such as 1024 or 1280 if you prefer

The next line is the baseline vertical resolution - 600
This can also be amended to suit, but in the current version of the code this is NOT used & can be disabled

The third line is the pixels per inch setting which is normally 96 for 100%
NOTE: if the screen scaling is magnified to e.g. 125% this value becomes 120 ppi. The code still works perfectly.

6.   Setting the default form size                                                                                               Return To Top

The code currently specifies a 'base resolution' of 800*600 though that can be changed to any resolution that suits your needs.
However I certainly don't develop in that resolution. My primary monitor is in fact 1680*1050 and my secondary monitor is 1920*1080.

What it actually means is that my base form size in design view is such that if I did use 800*600, it would fill the screen.
By experiment, I found that size should be approximately 20.5cm*12.5cm.

So my forms are designed in that size & will scale up to 'fill the screen' in any other higher resolution
More accurately it will fill the total height of the screen.

Due to different form factors (4:3, 5:4, 16:9, 16:10 etc) the form may be slightly less than the total monitor width.
Whilst I could also use code to stretch it to fit horizontally, there would be some distortion by doing so
Alternatively you could increase the default width of your forms in design view

I also design with default font = Calibri 7pt which after resizing becomes Calibri 11pt

I could also change the base resolution to say 1024*768 and if I did so, the base form size would be proportionately larger (25.85*17.2 cm approx)and the font size would be 9pt in design view. However, it would scale up from that equally well.

NOTE: You may wish to adjust the default width if, for example, all users have monitors with widescreen form factor.

You may also need to adapt the specified sizes slightly if you normally do any of the following:
a)    Set ribbon and / or navigation pane maximised
b)    Design forms with no header / footer section
c)    Use tabbed documents instead of overlapping windows
d)    Use popup forms

The attached application includes three example template forms (800x600, 1024x768 and 1366x768).
These may be useful to set maximum form sizes to ensure they fit properly in different screen resolutions and form factors.

800*600 template (form factor = 4:3)


1024*768 template  (form factor = 4:3)


1366*768 template  (form factor = 16:10)


It is useful to place a transparent box control over each section of the form to mark out the correct size required.
The box should be equal to the width and height of that section.

This will be useful if you need to restore the original size after making any temporary changes in form layout / size

7.   Downloads                                                                                                                                       Return To Top

Click the links to download various items related to this topic:

1.   The example application referenced in this article -     (ACCDB file zipped)

2.   An earlier version of the example application if you don't need any of the new features -     (ACCDB file zipped)

3.   The original auto form resize utility by Jamie Czernik from 2003 -     (MDB zipped)

8.   YouTube Videos                                                                                                                         Return To Top

1.   I ran a session on Automatic Form Resizing for the US Lunchtime Access User Group on 28 Sept 2021.
      The video is available on You Tube at: or you can click on the video below.


      Many thanks to Crystal Long (MVP) for the considerable time she spent expertly editing the video recording of this session.

2.  Since then, I have done updated versions of the same presentation for the UK Access User Group on 8 Feb 2022 and again for the Denver Area Access
      User Group on 17 Feb 2022. The updated presentation also included the use of AFR with datasheet forms and navigation forms

      The video of the Denver Area AUG session is also available on You Tube at: or you can click on the video below.


9.   Summary / Review                                                                                                   Return To Top

The first part of this article has discussed the benefits of automatic form resizing as well as an alternative approach based on the use of the built in layout guides and anchoring.

The second part of the article adds an optional zoom feature to Access forms - this can be very useful for those with less than perfect eyesight.
This section also covers some potential issues you may experience and possible solutions for each of these.

The third part of the article will explain how the resizing code works and how to use it in your own applications.

The fourth part of the article will explain all the latest features added in version 3.90

10.   Feedback                                                                                                                       Return To Top

I would be grateful for any feedback on this article including details of any errors or omissions

If you have any comments or questions, please contact me using the feedback form below or send me an email

Colin Riddington               Mendip Data Systems               Last Updated 26 Apr 2023

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