自适应屏幕缩放

Signed-off-by: fong <wuwenfengmi@outlook.com>

ip_sacaner/main.cpp

@@ -241,6 +241,8 @@
 
 int main(int argc, char *argv[])
 {
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+    //qputenv("QT_SCALE_FACTOR", "2");
     QApplication a(argc, argv);
     Widget w;
     w.show();