Retreving Contry Location Using GPS in Qt

I am new to Qt , and i have been given this task ...

to Detect the country using GPS - and to display it in a textbox .

Well since am new to this i have no clue what so ever how to do such thing. i started by searching over the internet

i ended up here: http://www.developer.nokia.com/Community/Wiki/File:Qt_for_Maemo_Location_Example.zip

so i downloaded the code and run it , tons of errors appeared

..\liblocation\locationinfowidget.cpp:开发者_运维技巧1:34: error: hildon/hildon-banner.h: No such file or directory
In file included from ..\liblocation\locationinfowidget.cpp:5:
..\liblocation\/locationinfowidget.h:18: error: 'LocationGPSDeviceFix' has not been declared
..\liblocation\/locationinfowidget.h:20: error: 'LocationGPSDeviceStatus' has not been declared
..\liblocation\/locationinfowidget.h:23: error: 'LocationGPSDevice' has not been declared
..\liblocation\/locationinfowidget.h:23: error: 'gpointer' has not been declared
..\liblocation\/locationinfowidget.h:24: error: 'LocationGPSDevice' has not been declared
..\liblocation\/locationinfowidget.h:24: error: 'gpointer' has not been declared
..\liblocation\/locationinfowidget.h:25: error: 'LocationGPSDevice' has not been declared
..\liblocation\/locationinfowidget.h:25: error: 'gpointer' has not been declared
..\liblocation\/locationinfowidget.h:33: error: ISO C++ forbids declaration of 'LocationGPSDevice' with no type
..\liblocation\/locationinfowidget.h:33: error: expected ';' before '*' token
..\liblocation\/locationinfowidget.h:34: error: ISO C++ forbids declaration of 'LocationGPSDControl' with no type
..\liblocation\/locationinfowidget.h:34: error: expected ';' before '*' token
..\liblocation\locationinfowidget.cpp: In constructor 'LocationInfoWidget::LocationInfoWidget(QWidget*)':
..\liblocation\locationinfowidget.cpp:33: error: 'control' was not declared in this scope
..\liblocation\locationinfowidget.cpp:33: error: 'location_gpsd_control_get_default' was not declared in this scope
..\liblocation\locationinfowidget.cpp:35: error: 'location_gpsd_control_start' was not declared in this scope
..\liblocation\locationinfowidget.cpp:37: error: 'device' was not declared in this scope
..\liblocation\locationinfowidget.cpp:37: error: 'LocationGPSDevice' was not declared in this scope
..\liblocation\locationinfowidget.cpp:37: error: expected primary-expression before ')' token
..\liblocation\locationinfowidget.cpp:37: error: expected ';' before 'g_object_new'
..\liblocation\locationinfowidget.cpp:40: error: 'G_CALLBACK' was not declared in this scope
..\liblocation\locationinfowidget.cpp:40: error: 'g_signal_connect' was not declared in this scope
..\liblocation\locationinfowidget.cpp: In destructor 'virtual LocationInfoWidget::~LocationInfoWidget()':
..\liblocation\locationinfowidget.cpp:50: error: 'device' was not declared in this scope
..\liblocation\locationinfowidget.cpp:51: error: 'g_object_unref' was not declared in this scope
..\liblocation\locationinfowidget.cpp:53: error: 'control' was not declared in this scope
..\liblocation\locationinfowidget.cpp:54: error: 'location_gpsd_control_stop' was not declared in this scope
..\liblocation\locationinfowidget.cpp: At global scope:
..\liblocation\locationinfowidget.cpp:57: error: variable or field 'updateStatus' declared void
..\liblocation\locationinfowidget.cpp:57: error: 'LocationGPSDeviceStatus' was not declared in this scope
mingw32-make[1]: *** [debug/locationinfowidget.o] Error 1
mingw32-make: *** [debug] Error 2

So am I doing it all wrong ? Is there a simpler way to do such things? Please be Specific, I would appreciate it

Well, the first error really says it all: "hildon/hildon-banner.h: No such file or directory".

You're missing at least that file. Probably that file declared LocationGPSDeviceFix, which explains the second error "'LocationGPSDeviceFix' has not been declared". And from there on it's downhill. In C++, you should really start fixing errors from the top down.

BTW, GPS just tells you longitude and latittude. You need a map to translate that into a country. Phone network ID may be easier; the first three digits are the Mobile Country Code (MCC)