Andreas Berger wrote:
You got further then I did. I can't open a 1280x1024x32 bitmap (16MB).
TBitmap.LoadFromFile throws an exception every time.
Ger Remmers wrote:
Hi all,
Back to working with Lazarus after an away of a year. And I have seen
a lot of good stuff has happend during that time.
I have written a graphics app (in D3 for display/render design) that
heavily depends on large bitmaps.
First I tried to use the "Convert Delphi to Lazarus Project" option
but I ran into a lot of things that couldn't be converted because
they were build on specific Windows tricks. Not a big deal because a
lot needs re-thinking/designing anyway.
Building a test app I ran into 2 major problems that I can't figure out.
First, when loading an image bigger then the Form the scrollbars are
okay but as soon as I resize the Form the scrollbars go full-length
so scrolling is no longer possible.
Secondly, loading an image larger then ~3000x2000 takes ages. Loading
an image larger then 5000X5000 doesn't happen at all. ( I Left it to
load over night and it still hadn't loaded in the morning)
The biggest images I have at the moment are ~15000x12500.
I have tried debugging to see where/when the scrollbars are effected
but somehow I never get to that point.
All I have so far is a test app with a scollbox, an image and a load
button because going beyond that doesn't make any sense if I can't
get the 2 problems resolved
Anybody doing graphics out there?
--
Ger
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I don't know about such big images(I do max. 1024x768), but I do know
that scrolling is indeed broken.
Ales
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