width()

描述

取得萤幕的宽度。

语法


screen.width();


参数

无参数

回传

int：萤幕的宽度，单位为像�

范例

#include <SPI.h>
#include <TFT.h>

#define cs   10
#define dc   9
#define rst  8

TFT screen = TFT(cs, dc, rst);

void setup() {
  // 初始化 TFT 物件
  screen.begin();

  // 设定背景色为黑色
  screen.background(0,0,0);

  // 设定线段的颜色为白色
  screen.stroke(255,255,255);

  // 用灰色填满显示的图形
  screen.fill(127,127,127);

  // 在正中央画一个长方形
  screen.line(screen.width()/2-5, screen.height()/2-5, 10, 10);
}

void loop() {

}

See also

－ TFT
－ height()

函式库参考主页面

The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.