Integrating zbar library

bhargavah

Hi Guys,

I was able to install the qt into my machine and now I have started to build my project which is the scanning of the barcode reader. I have decided to use 'zbar' library for this purpose and installed the same in my macOs.

This is how I verified the installation of 'zbar'.

apple@Apples-MacBook-Air barcode % pkg-config --cflags --libs zbar 
-I/usr/local/Cellar/zbar/0.23.90_4/include -L/usr/local/Cellar/zbar/0.23.90_4/lib -lzbar

Now, I would like to integrate this in my Qt6.4 system and I started with:

target_link_libraries(camera PUBLIC /usr/local/Cellar/zbar/0.23.90_4/lib/libzbar)

And this did not work.

How do I integrate 'zbar' and Qt 6.4 otherwise?

bhargavah

@JoeCFD I was able to find an answer to this question by doing this:

find_package(PkgConfig REQUIRED)
pkg_check_modules(ZBar REQUIRED IMPORTED_TARGET zbar)
target_link_libraries(camera PUBLIC PkgConfig::ZBar)
Since I anyway had pkg-config, I found that package and then zbar using that package and then linked it with the libraries.

SGaist

Hi,

Since you have pkg-config, something along the lines of:

find_package(PkgConfig REQUIRED)
pkg_check_modules(ZBAR REQUIRED zbar)
target_link_libraries(camera ${ZBAR_LINK_LIBRARIES})

Note that I haven't tested it.

bhargavah

@SGaist Hey. Much thanks for the reply. Adding your suggestion into the CMake file and doing #include
zbar.h into the cpp file does not work. It says that zbar.h file not found.

Thank you.

JoeCFD

@bhargavah
add something like:
include_directories(${ZBAR_INCLUDE_DIRS})

bhargavah

@JoeCFD I was able to find an answer to this question by doing this:

find_package(PkgConfig REQUIRED)
pkg_check_modules(ZBar REQUIRED IMPORTED_TARGET zbar)
target_link_libraries(camera PUBLIC PkgConfig::ZBar)
Since I anyway had pkg-config, I found that package and then zbar using that package and then linked it with the libraries.