Cannot open big images, size limitet of LongInt, not Int64

[jonyrh-td-sever]

Cannot open big images, size limitet of LongInt, not Int64..

May bi, add compile defines for CPU x86_64 to use big images?
And open images in stream as TFileStream for not use RAM?

[galfar]

That's right, size in TImageData should be Int64 or NativeInt rather.
More troubles would be with some IO functions and some image format loaders/savers.
What are you most interested in?

I used memory mapped files as Bits in TImageData for big images in a project using Imaging many years ago - I'll see if it could be resurrected (at least as a demo).

[jonyrh-td-sever]

I think NativeInt will be more compatible, since you won't have to create separate code for different compiler directives like {$DEFINE CPUX86_64}. And thanks for the answer! :-)