Printing Graphics in Delphi 1.0

OK, basically all I'm trying to do is print out two graphs
from of the screen.  I use stretchdraw from the image canvas
to the printer canvas.  Sound pretty simple, but sometimes
only one graph will appear, or no graphs at all.  Because
it only happens sometimes its hard to find what the problem
is.  My question is why and how do I fix it? (I figure its
probably memory related.
boabyteAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

andrewjbCommented:
Just so you know you're not alone... I'm having the same trouble. First page of a graphical printout is always OK. Second often comes out blank. Don't know why. Will let you know if I get anywhere!
AJB
0
slpCommented:
There are known problems with using StretchBlt() (which underlies the StretchDraw method) with most printer canvases, the most general solution involves using StretchDIBBits()instead.  For more details, have a look at Borland's tech doc: TI3155 "A Better Way to Print a Form" at their web site:

http://www.borland.com/devsupport/delphi/ti_list/


SLP

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
boabyteAuthor Commented:
Thanks.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.