Slow images in NT/W2k/XP
Posted on 2002-03-15
I have an app which loads a proprietry file containing a large number of jpeg images and displays them. The images are decompressed and displayed in standard TImages.
If I run the app under W95/W98 etc I can display up to about 40 images/sec. If I run it under NT/W2k/XP it slows to about 2 or 3 images/sec. This happens on many different machines including some with very fast processors and high power graphics cards. You can see the images repainting on the screen - it's horrible.
The original app was written in Delphi3. I have just converted it to D6 and compiled it on a W2k machine and it is still exactly the same.
Is there some trick and/or setting to make, either to the OS or to the app or component, to make Timages work faster with NT etc?
This is really bugging me - 200 points to the winner.