Re: Window size differences
resize the client area at runtime by using the normal window resize.
You can calculate window y size - client area
Then when resizing just set the window size to "client size" + x
Re: Window size differences
with "Sphax Kernel object" you can retrieve window size and client area size and position so you can calculate a correct size for your client area.
Re: Window size differences
Interesting, I thought this was common knowledge.
To help other developers I added a page regarding this issue to the wiki here.
http://www.clickwiki.info/index.php/Windows_size_difference
You'll need to read it to get up to speed regarding this issue, it a little more comprehensive and covers more aspects of what can affect the client area.
Your article has also inspired a new category at the ClickWiki called Debugging Applications.
Thanks.