Difference between revisions of "Tft.drawFastVLine()"
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(Created page with "<pre style="color:green"> tft.drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color) </pre> *'''Effect''':<br> Draw a verticl line on the TFT screen.<br> *'''Parame...") |
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| − | [[ | + | [[https://wiki.microduino.cc/index.php/TFT_ST7735_Grammar_Handbook Return to TFT_ST7735 Grammar Handbook]] |
Revision as of 04:32, 18 July 2016
tft.drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color)
- Effect:
Draw a verticl line on the TFT screen.
- Parameters:
x：x coordinate of the starting point
y：y coordinate of the starting point
w：length of the vertical line
color：color of the line
- Example:
#define sclk 13
#define mosi 11
#define cs 5
#define dc 4
#define rst -1 // you can also connect this to the Arduino reset
#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library
#include <SPI.h>
#if defined(__SAM3X8E__)
#undef __FlashStringHelper::F(string_literal)
#define F(string_literal) string_literal
#endif
Adafruit_ST7735 tft = Adafruit_ST7735(cs, dc, mosi, sclk, rst);
void setup(void) {
tft.initR(INITR_BLACKTAB); // initialize a ST7735S chip, black tab
tft.fillScreen(ST7735_BLACK);
tft.drawFastVLine(60, 20, 100, ST7735_RED);
}
void loop() { }
