Aley Keprt wrote: > Yes, I suppose this feature has gone when you added GZip > support where you don't know the size of uncompressed image.
Well, for a general size test you could gzseek to a position large enough to cover the files you're likely to be handling, and see what it returns as the offset. It'll probably be as expensive as uncompressing the file up to that position, but isn't too bad for smallish files and infrequent tests. Or to test for a specific size just seek to it and make sure you can't read 1 byte more. I ended up having to use that method for the CStream base class, but with a read instead of the seek since the ZIP implementation I'm using doesn't support seeking. Si
