I have SSD1306 oled display, its use the library "Adafruit_SSD1306.cpp"
here display object is created like this, "Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);"
uisng "display" object "display.println("Hello, world!");" print the string into old display.
my doubt is, where the println function is defined? i am not seen in Adafruit_SSD1306 library.