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TFTLibrary > TFT

stroke

Description

Called before drawing an object on screen, it sets the color of lines and borders around shapes.

stroke() expects 8-bit values for each of the red, green, and blue channels, but the screen does not display with this fidelity. The red and blue values are scaled to 5-bit color (32 discrete steps), and the green is 6-bit color (64 discrete steps).

Syntax

screen.stroke(red, green, blue);

Parameters

  • red : int 0-255
  • green : int 0-255
  • blue : int 0-255

Returns

none

Example

#include <SPI.h>
#include <TFT.h>            // Arduino LCD library

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

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

void setup() {
  // initialize the screen
  screen.begin();

  // make the background black
  screen.background(0,0,0);

  // set the stroke color to white
  screen.stroke(255,255,255);

  // draw a box with a white outline in the middle of the screen
  screen.rect(screen.width()/2+10,screen.height()/2+10,screen.width()/2-10,screen.height()/2-10);
}

void loop() {

}
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See also

Reference Home

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