LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
April 2005
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2005.04.17 06:33 "Re: How do I access the data once I use TIFFReadEncodedStrip?", by Chris Losinger
At 02:12 AM 4/17/2005, Phillip Wiles wrote: > I'm using a small sample tiff (that is Group 3 compressed) and would like > to get it to display out in window as: 00000111000 > Which gives me this: > c:\main.cpp(30) : error C2036: 'void *' : unknown size > c:\main.cpp(30) : error C2679: binary '<<' : no operator defined which > takes a right-hand operand of type 'void' (or there is no acceptable > conversion) > > Is it because I'm trying to use std::cout calls, or am I completely not > understanding how buf works? > > tdata_t buf; > .... > > std::cout << buf[x + (height * y)]; buf is a void * pointer, so it isn't really addressing single bytes - it's just a pointer to the start of *something*. that's the "unknown size" error. if you want to print individual characters, you can do something like: char *p = (char *)buf; std::cout << p[x + (height *y)]; etc ---- Chris Losinger losinger@earthlink.net smallest@smalleranimals.com http://www.smalleranimals.com