Obtaining Image Properties in ASP Without a Component

John Avis by | December 9, 2009 | Classic ASP Web Development

You don't need a third party server component to determine the height and width of an image file in Classic ASP. The LoadPicture command will load an image into and object and you can then access the height and width, such as in this example:

Dim objImage
Set objImage = LoadPicture(Server.MapPath("image.ext"))
intWidth = objImage.Width
intHeight = objImage.Height

4GuysFromRoll.com has an interesting article on resizing images without a component - see http://www.4guysfromrolla.com/webtech/050300-1.shtml.

The following link contains some other code that can access image properties as well as modify GIF images: http://www.u229.no/stuff/.

Lastly the following link is for a component-less CAPTCHA genertor which generates a BMP image from ASP.It may help you understand how to create and modify BMP files. See http://www.tipstricks.org/.

Related Posts

Computers & Internet Web Development Website Hosting

500 Internal Server Error after migrating from IIS 7.5 to IIS 10

by John Avis | November 4, 2019

As support ends for Microsoft Windows Server 2008 I have recently gone through migrating some websites to a new server running Windows Server 2016 and IIS 10 but some of the websites did not work.


Jquery/Javascript Web Development

tagInput: A simple jQuery plugin for tag entry using Bootstrap 4

by John Avis | October 15, 2019

For a website project I needed a way to enter multiple tags. I just wanted something simple that I could easily modify to suit my own needs, so I wrote my own.


ASP.NET Web Forms Web Development

ASP.NET bug with RadioButton GroupName in Repeater

by John Avis | September 1, 2019

I rediscovered a bug in ASP.NET that affects RadioButtons inside repeaters. Here is my solution to the problem.

Comments

There are no comments yet. Be the first to leave a comment!

Leave a Comment

Tags

About me

...random postings about web development and programming, Internet, computers, electronics and automotive topics.

Subscribe

Get the latest posts delivered to your inbox.