### Qt 5.6.2 "xcb"

Parses fonts via FC in QFontconfigDatabase::addApplicationFont() 
at qtbase/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp:763

addAppFont 122524 ":/fonts/LatoFont/Lato-Light.ttf"
QFontconfigDatabase::addApplicationFont 122524 ":/fonts/LatoFont/Lato-Light.ttf"
set= 0x1791500
adding "Lato"
addAppFont 120196 ":/fonts/LatoFont/Lato-Regular.ttf"
QFontconfigDatabase::addApplicationFont 120196 ":/fonts/LatoFont/Lato-Regular.ttf"
set= 0x1791500
adding "Lato"
QFontconfigDatabase::addApplicationFont 122524 ":/fonts/LatoFont/Lato-Light.ttf"
set= 0x1791610
adding "Lato"
QFontconfigDatabase::addApplicationFont 120196 ":/fonts/LatoFont/Lato-Regular.ttf"
set= 0x1791610
adding "Lato"
"Lato" ("Black", "Bold", "Black Italic", "Medium", "Heavy Italic", "Thin Italic", "Light Italic", "Medium Italic", "Bold Italic", "Hairline Italic", "Heavy", "Thin", "Italic", "Regular", "Semibold Italic", "Hairline", "Semibold", "Light")

### Qt 5.6.2 "windows"

Parses fonts in getFamiliesAndSignatures() at 
qtbase/src/plugins/platforms/windows/qwindowsfontdatabase.cpp:1334 : 
called from QWindowsFontDatabase::addApplicationFont():

QFontDatabasePrivate::addAppFont 122524 ":/fonts/LatoFont/Lato-Light.ttf"
QWindowsFontDatabase::addApplicationFont 122524 ":/fonts/LatoFont/Lato-Light.ttf"
QWindowsFontDatabase::addApplicationFont ("Lato Light") 1
QFontDatabasePrivate::addAppFont 120196 ":/fonts/LatoFont/Lato-Regular.ttf"
QWindowsFontDatabase::addApplicationFont 120196 ":/fonts/LatoFont/Lato-Regular.ttf"
QWindowsFontDatabase::addApplicationFont ("Lato") 1
QWindowsFontDatabase::addApplicationFont 122524 ":/fonts/LatoFont/Lato-Light.ttf"
QWindowsFontDatabase::addApplicationFont ("Lato Light") 1
QWindowsFontDatabase::addApplicationFont 120196 ":/fonts/LatoFont/Lato-Regular.ttf"
QWindowsFontDatabase::addApplicationFont ("Lato") 1
"Lato" ("Normal", "Bold", "Italic", "Bold Italic")
"Lato Light" ("Light", "Bold", "Light Italic", "Bold Italic")


### Qt 4.8.7./Windows
"Lato" ("Normal", "Bold", "Italic", "Bold Italic") 
"Lato Light" ("Light", "Bold", "Light Italic", "Bold Italic")