Advice on memory handling

[minor28]

Yes you are right. I have been consentrating on memory too much. I have succeeded to improve the unpacking algo. Now the memory use is less than 9MB and nothing on page file when painting on only the client area. On a 24" screen it is some jerky movements, but acceptable.

I run it on an 333 Mhz 128MB RAM laptop. The image is loaded without delay. Movements are jerky but almost acceptable. Memory use 6,140KB

If I encrease the image height and width three times the loading on the laptop is some delayed but movements are jerky free. Memory use 16,680MB.

I think something in between will be the best solution.

Thank you all for your help.