Question

2.0 + MinGW32 + Windows platform + Netbeans IDE to create my application. i have created the front-end but now i need to add language selection option and i want auto translation and i m new to GTK so i want detailed help. i searched on google but i didn’t found any help for doing it on windows so please help as soon as possible 🙁
I have designed my layout using gtkBuilder.

I want to know the exact steps to follow to get it done…

Please highlight how to use gettext() or_() in windows and what are .po files and how to handle them…

** Sorry for bad English…

Answer 1

cat >hellogt.cxx <<EOF
// hellogt.cxx
#include <libintl.h>
#include <locale.h>
#include <iostream>
int main (){
    setlocale(LC_ALL, "");
    bindtextdomain("hellogt", ".");
    textdomain( "hellogt");
    std::cout << gettext("hello, world!") << std::endl;
}
EOF
g++ -o hellogt hellogt.cxx
xgettext --package-name hellogt --package-version 1.2 --default-domain hellogt --output hellogt.pot hellogt.cxx
msginit --no-translator --locale es_MX --output-file hellogt_spanish.po --input hellogt.pot
sed --in-place hellogt_spanish.po --expression='/"hello, world!"/,/#: / s/""/"hola mundo"/'
mkdir --parents ./es_MX.utf8/LC_MESSAGES
msgfmt --check --verbose --output-file ./es_MX.utf8/LC_MESSAGES/hellogt.mo hellogt_spanish.po
LANGUAGE=es_MX.utf8 ./hellogt

Here is a description of the files created by the above:

hellogt.cxx         C++ source file
hellogt             Executable image
hellogt.pot         Extracted text from C++ source file (portable object template)
hellogt_spanish.po  Modified text for Spanish with translations added (using sed)
es_MX.utf8/
 LC_MESSAGES/
   hellogt.mo       Binary translated text for Spanish used at run-time

SOURCE: Complete C++ i18n gettext() "hello world" example