Linux/CUPS Qt 打印示例

Question

I need to use the CUPS API in Qt to detect and install printers. The problem is I can't seem to make Qt detect the cups.h header file. So far I tried (both with <> and ""):

#include <cups/cups.h>

and

#include </usr/local/include/cups/cups.h>

In the .pro file I also tried adding:

INCLUDEPATH += /usr/local/include/cups

Each time I get "cups/cups.h: no such file or directory". So can anybody provide a minimal example or a HOWTO that shows how to include and use CUPS in a Qt application.

Thanks!

PS: I'am not sure if it's relevant, but I probably should add that I cross compiled Qt for the raspberry Pi.

Answer 1

Install the "libcups2-dev" libraries.

 sudo apt-get install libcups2-dev

then search for the library file

find / -type f -name "*.a"

you will get the response with all .a library files with the location

find "libcups.a" file from the list.

example : /home/Desktop/cups-1.7.5/cups/libcups.a

Add the destination file path in your Qt .pro project file

LIBS += "../release/build/arm926/libcups.a"

Answer 2

LIBS += \\ /usr/lib/x86_64-linux-gnu/libcups.a

Get error :-1: error: /usr/lib/x86_64-linux-gnu/libcups.a(file.o): undefined reference to symbol 'inflateEnd'

Please advice someone