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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() {
}
#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() {
}
See also
- background()
- noStroke()
- fill()
Corrections, suggestions, and new documentation should be posted to the Forum.
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.
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