myfirstgui 0 0 411 247 My First Gui! 20 210 381 32 Qt::Horizontal QDialogButtonBox::Close 10 10 101 21 120 10 281 192 10 180 101 23 clear 10 40 101 23 add buttonBox accepted() myfirstgui accept() 258 274 157 274 buttonBox rejected() myfirstgui reject() 316 260 286 274 clearBtn clicked() listWidget clear() 177 253 177 174