I have a Qt project, and I would like to save tiff files with 16bit color depth. Therefore I want to use the bigTIFF library.
On http://bigtiff.org/ site I downloaded
- Source ZIP for libtiff 4.1 including libjpeg 6b and zlib 1.2.3
- Static library ZIP of libtiff.lib 4.1 for MS Windows linked with libjpeg 6b and zlib 1.2.3
The second download contains only libtiff.lib and the first one a lot of header and source files.
My idea was now to just include libtiff.lib, the pro file looks like this:
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = bigTiffTest
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
INCLUDEPATH = "$$PWD/bigTiffLib/libtiff-4.1/tiff-4.1/libtiff"
LIBS += -L"$$PWD/bigTiffLib_static_linked" -llibtiff
DEPENDPATH += "$$PWD/bigTiffLib_static_linked"
Into my Qt project, and then include the header files, declaring the functions I want to use. So in my case tiffio.h.
But when I am calling functions defined in this header I am getting
LNK2019 unresolved external symbol 'symbol' referenced in function 'function'.
So obviously when I am calling functions defined in the header file, the compiler can not find the implementation in the libtiff.lib file.
How can I tell the compiler that he has to look for the implementation in the lib file? Any other suggestions how to integrate BigTiff in a Qt project?
