A very difficute question??

Hello:
I use VC++6.0 MFC ScrollView class.I set Scroll size 6800.
For quickly display graphic when I resize the graphic.I
use redraw (lines,and so on)to memory .From memory to display.
But when I set the memory is 6800.Run the program,the result
is there isn't enough memory or speed very very slowly.
What will I do?would you help me and give me any advice?
Thank you very much!
Yoh-Hei

I'm not sure I fully understand what you are doing, but are you blting an entire image instead of just the portion that is in view ? If so, that will surely slow you down.



Christian