Delphi with IntraWeb allows you to program, for the most part, just as you
would for a desktop app. Intraweb automatically generates any client-side
Javascript code needed to make it all work.
I found the solution myself for Visual Studio. I finally, after hours of
searching, found a site providing fairly complete documentation for the
Javascript "screen" object that exposes various attributes of the client,
including width, height and dpi. The solution is simply to write a little
Javascript snippet in the aspx file to get the necessary values from the
screen object then stick those values in corresponding hidden inputs on the
form. Since I couldn't find a complete, intelligible example anywhere (all
partial snippets), I'll include it here for anyone else who might need it.
I haven't looked closely at the IntraWeb javascript but I imagine it does
the samething -- it just does it for you.
In your C# code, just read Request.Form["ScreenWidth"], etc.
<script type="text/javascript" language="javascript">
var width = screen.width;
var height = screen.height;
var dpi = screen.deviceXDPI;
window.onload = function() {
document.getElementById("ScreenWidth").value = width;
document.getElementById("ScreenHeight").value = height;
document.getElementById("ScreenDPI").value = dpi;
}
</script>
<input type="hidden" name="ScreenWidth" />
<input type="hidden" name="ScreenHeight" />
<input type="hidden" name="ScreenDPI" />
Ray
"George" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> 1. I wonder how you did it with Delphi/Intraweb isapi app
>
> My guess in order to detect DPI you need some executable to sit on the
> clients computer
> The way it's usually done is using Flash. It's some executable that is
> sitting on clients computer but lucky for us almost everyone has it.
>
>
> George.
>
>
> "Ray Porter" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> I've figured out how to detect the client's screen width and height but
>> is there anyway to do the same for the client DPI setting?
>>
>> I can do this in a Delphi/Intraweb isapi app but I haven't found how to
>> do it in C#/ASP.Net.
>>
>> Thanks,
>> =================================
>> Ray Porter
>> Information Systems
>> Applications Development Manager
>> Division of University Advancement
>> University of North Carolina at Chapel Hill
>> Phone: (919) 259-9389
>> Fax: (919) 843-3314
>> Pager: (919) 216-4218
>>
>> (E-Mail Removed)
>> http://www.unc.edu/~dragon
>>
>> Meddle not in the affairs of dragons for thou
>> art crunchy and taste good with ketchup
>>
>
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