The Road to Delphi

Delphi – Free Pascal – Oxygene

Important Note about using the Google Maps API from Desktop Apps


If you are experimenting some strange issues (maps goes blank, some elements of the maps are not displayed) using the Google Maps API from a desktop application.


This is because the JavaScript API v3 no longer supports the IE7 and IE8 rendering mode, as is stated on this document


The workaround is very simple just add the V=3 parameter to the script tag, So if you script looks like this

<script type="text/javascript" src=""></script>

Change to

<script type="text/javascript" src=""></script>


Note  :   If you do not explicitly specify a version in your JavaScript API bootstrap request, you will receive the experimental version by default (3.22) which not longer supports the IE8.



Another option is tweak the Windows registry how is shown here.

By the way I just updated all the Google Maps related code of this blog (Check the updated code on Github).

Some additional references



Author: Rodrigo

Just another Delphi guy.

7 thoughts on “Important Note about using the Google Maps API from Desktop Apps

  1. Thank you. I have a problem …

    I downloaded the 5 files from here:

    I tried to open the project using Delphi XE2.

    This error occurs: [image: Inline image 1]

    How to fix?

    Thank you.

  2. Thank you.

  3. Adding ?v=3 will buy you a few months as you’re pinning to the ‘release’ version instead of the ‘experimental’ one [1], but in 3-6 months the last version (3.21) which supports IE8 will be no longer available once it’s time as the ‘frozen’ version winds down.

    The registry tweak or figuring out how to get a more updated rendering engine in the web control is your best bet for a long term solution.


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